Vehicle lower cross beam assembly and railway vehicle

Abstract

The invention discloses a vehicle lower cross beam assembly and a railway vehicle, the vehicle lower cross beam assembly comprises two vehicle lower cross beam bodies, the vehicle lower cross beam bodies at least comprise cross beam vertical plates, a first display plate and a second display plate, the number of the vehicle lower cross beam bodies is two, the cross beam vertical plates of the two vehicle lower cross beam bodies are attached and welded, and the end parts of the cross beam vertical plates are used for being welded to boundary beams of a vehicle chassis; at least one of the two vehicle lower cross beam bodies is used for being connected with equipment to be hoisted, and the reinforcing piece is connected to the vehicle lower cross beam hoisting body and connected with the first display board and the second display board of the vehicle lower cross beam hoisting body. The vehicle lower cross beam assembly is provided with the two vehicle lower cross beam bodies, and the two vehicle lower cross beam bodies are arranged back to back, so that the cross beam vertical plates of the two vehicle lower cross beam bodies are attached to each other and fixed through welding, the two vehicle lower cross beam bodies are connected into a whole, and the strength and rigidity of the vehicle lower cross beam assembly are improved to a great extent. And the hoisting point is forcefully reinforced through the reinforcing piece, so that the hoisting risk is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of rail vehicles, and more specifically, to an undercarriage crossbeam assembly and a rail vehicle. Background Art

[0002] At present, most of the electrical and brake equipment of urban rail vehicles are hoisted under the undercarriage beam of the vehicle body chassis. The weight of equipment such as air compressors, emergency ventilation inverters, and brake modules is relatively light, and the structural strength of the undercarriage beam assembly currently fully meets the installation requirements; while the battery box is heavy, up to 1.3 tons, and the hoisting of the undercarriage beam assembly in the existing technology is risky.

[0003] Therefore, how to improve the structural strength of the undercarriage cross beam assembly and reduce the risk of lifting is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0004] In view of this, the object of the present application is to provide an under-vehicle cross beam assembly to improve the structural strength of the under-vehicle cross beam assembly and reduce the risk of hoisting;

[0005] Another object of the present application is to provide a rail vehicle having the above-mentioned undercarriage cross beam assembly.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] The first aspect of the present application provides an undercarriage cross beam assembly, comprising:

[0008] The undercarriage cross beam body at least comprises a cross beam upright plate and a first display plate and a second display plate respectively arranged on both sides of the cross beam upright plate. There are two undercarriage cross beam bodies, and the cross beam upright plates of the two undercarriage cross beam bodies are bonded and welded, and the ends of the cross beam upright plates are used to be welded to the side beams of the vehicle chassis;

[0009] A reinforcement member, at least one of the two under-vehicle cross beams is used to connect to the equipment to be hoisted, the under-vehicle cross beam body used to connect to the equipment to be hoisted is defined as an under-vehicle cross beam hoisting body, the reinforcement member is connected to the under-vehicle cross beam hoisting body, and is respectively connected to the first display panel and the second display panel of the under-vehicle cross beam hoisting body.

[0010] In a possible implementation, when the under-vehicle cross beam assembly is installed on the vehicle chassis, the first display panel is located at the lower side of the second display panel, and the first display panel of the under-vehicle cross beam hoisting body is a hoisting panel for connecting the equipment to be hoisted;

[0011] A plurality of first hoisting holes are provided on the first display plate of the under-vehicle cross beam hoisting body, and a second hoisting hole for communicating with the first hoisting holes is provided on the reinforcing member.

[0012] In a possible implementation, each of the first hanging holes is correspondingly provided with one of the reinforcing pieces, the reinforcing piece is provided with at least two second hanging holes arranged at intervals, and one of the second hanging holes of the reinforcing piece is connected to the first hanging hole;

[0013] and / or,

[0014] A plurality of first weight-reducing holes are provided on the second display plate of the under-vehicle cross beam hoisting body, and the first weight-reducing holes are used for passing electrical wiring harnesses and / or fixing pipe clamps.

[0015] In a possible implementation, the reinforcement member includes a reinforcement seat plate portion, a reinforcement vertical plate portion, and a reinforcement extension plate portion;

[0016] There are two reinforcing upright plate parts, which are respectively connected to the two ends of the reinforcing seat plate part; there are two reinforcing extension plate parts, which are connected to one end of the reinforcing upright plate part away from the reinforcing seat plate part;

[0017] The reinforcing seat plate portion is welded to the first display plate of the under-vehicle cross beam hanging body, and the reinforcing display plate portion is welded to the second display plate of the under-vehicle cross beam hanging body.

[0018] In a possible implementation, the reinforcement vertical plate portion is perpendicular to the reinforcement seat plate portion, and the reinforcement extension plate portion is perpendicular to the reinforcement vertical plate portion;

[0019] The projection of the reinforcement display panel portion on the plane where the reinforcement seat plate portion is located does not overlap with the reinforcement seat plate portion.

[0020] In a possible implementation, a reinforcement piece is further included, and any one end of the two cross beam upright plates is provided with the reinforcement piece, and the cross beam upright plates are welded to the side beams through the reinforcement piece;

[0021] and / or,

[0022] A plurality of second weight-reducing holes are provided on the crossbeam vertical plate, and the second weight-reducing holes are used for passing electrical wire tubes.

[0023] In a possible implementation, both ends of the crossbeam stand extend outwards from the first display board and the second display board;

[0024] Welding grooves are provided at the connection points between the cross beam upright plate and the first exhibition plate and the second exhibition plate, and welding grooves are provided at the end surfaces of the first exhibition plate and the second exhibition plate facing the reinforcement member;

[0025] The portion of the cross beam vertical plate extending outside the first display plate and the second display plate is inserted into the embedding groove of the reinforcement member and welded to the inner wall of the reinforcement member;

[0026] The welding grooves of the first display panel and the second display panel are welded to the end surface of the reinforcement.

[0027] In a possible implementation, the reinforcement is a U-shaped groove plate, and the crossbeam vertical plate is inserted into the reinforcement and fixed by welding;

[0028] The groove bottom wall of the reinforcement is affixed to and welded to the vertical surface of the side beam, and the two groove side walls of the reinforcement are respectively affixed to the two horizontal surfaces of the side beam and are welded alternately.

[0029] The undercarriage cross beam assembly provided by the present application has two undercarriage cross beam bodies, and the two undercarriage cross beam bodies are arranged back to back, so that the cross beam uprights of the two undercarriage cross beam bodies fit together, and are fixed by welding, so that the two undercarriage cross beam bodies are connected as a whole, which greatly increases the strength and rigidity of the undercarriage cross beam assembly. A reinforcing piece is added to the undercarriage cross beam hoisting body connected to the equipment to be hoisted in the two undercarriage cross beam bodies to increase the strength of the connection of the equipment to be hoisted, and the hoisting point is strongly reinforced, reducing the hoisting risk.

[0030] A second aspect of the present application provides a rail vehicle, comprising:

[0031] A vehicle underframe, the vehicle underframe being provided with an under-vehicle cross beam assembly as described in any one of the above items;

[0032] The equipment to be hoisted is provided with a hoisting seat, and the hoisting seat is connected to the under-vehicle cross beam hoisting body through hoisting bolts.

[0033] A third aspect of the present application provides a rail vehicle, comprising:

[0034] A vehicle underframe, the vehicle underframe being provided with an under-vehicle cross beam assembly as described in any one of the above items;

[0035] The equipment to be hoisted is provided with a hoisting seat, the hoisting seat is provided with a third hoisting hole, the first hoisting hole, the second hoisting hole and the third hoisting hole are all waist-shaped holes, the first hoisting hole and the second hoisting hole have the same extension direction, the extension direction of the third hoisting hole is perpendicular to the extension direction of the first hoisting hole, the hoisting seat passes through the first hoisting hole, the second hoisting hole and the third hoisting hole by hoisting bolts, and is connected to the under-vehicle crossbeam hoisting body.

[0036] The rail vehicle provided in the present application has the above-mentioned under-vehicle cross beam assembly, and therefore has all the technical effects of the above-mentioned under-vehicle cross beam assembly, which will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 An exploded view of the undercarriage cross beam assembly disclosed in an embodiment of the present application;

[0039] Figure 2 It is a structural schematic diagram of the under-vehicle cross beam assembly disclosed in an embodiment of the present application;

[0040] Figure 3 It is a structural schematic diagram of the undercarriage cross beam assembly disclosed in the embodiment of the present application without the reinforcement member;

[0041] Figure 4 This is a schematic diagram of the structure of two undercar cross beams after welding disclosed in an embodiment of the present application;

[0042] Figure 5 This is a schematic diagram of the structure of the reinforcement member disclosed in the embodiment of the present application;

[0043] Figure 6 A cross-sectional view of an undercarriage cross beam assembly disclosed in an embodiment of the present application;

[0044] Figure 7 This is a schematic diagram of the structure in which the reinforcement member disclosed in the embodiment of the present application is welded to the side beam;

[0045] Figure 8 A front view of a reinforcement member welded to a side beam according to an embodiment of the present application;

[0046] Fig. 9 A top view of a reinforcement member welded to a side beam according to an embodiment of the present application;

[0047] Fig.10 A schematic diagram of a partial structure of a vehicle chassis disclosed in an embodiment of the present application from an upper side perspective;

[0048] Fig.11 A schematic diagram of the partial structure of the vehicle underframe disclosed in the embodiment of the present application from the lower side perspective;

[0049] Fig.12 A cross-sectional view of the welding point between the undercarriage cross beam and the reinforcement member disclosed in the embodiment of the present application;

[0050] Fig.13 It is a structural schematic diagram of the equipment to be hoisted disclosed in the embodiment of the present application being hoisted on the vehicle underframe in an upward perspective;

[0051] Fig.14 It is a schematic diagram of the structure of the equipment to be hoisted disclosed in the embodiment of the present application;

[0052] Fig.15 It is a structural schematic diagram of the connection between the equipment to be hoisted and the vehicle underframe disclosed in the embodiment of the present application;

[0053] Fig.16 This is a schematic diagram of the structures corresponding to the lifting holes disclosed in the embodiments of the present application.

[0054] The meanings of the reference numerals in the figures are as follows:

[0055] 10-undercarriage crossbeam assembly;

[0056] 20-equipment to be hoisted; 21-hoisting seat; 22-third hoisting hole;

[0057] 30-Lifting bolts;

[0058] 100-undercar crossbeam; 101-crossbeam vertical plate; 1011-welding groove; 1012-inner wall; 102-first display board; 103-second display board; 104-first lifting hole; 105-second weight reduction hole; 106-first weight reduction hole; 107-through hole; 108-Y-shaped weld;

[0059] 200-reinforcement member; 201-welding point; 202-welding point;

[0060] 300-reinforcement piece; 301-reinforcement seat plate; 302-reinforcement vertical plate; 303-reinforcement display plate; 304-second lifting hole; 305-welding hole;

[0061] 400-side beam. DETAILED DESCRIPTION

[0062] The core of this application is to provide an under-vehicle cross beam assembly to improve the structural strength of the under-vehicle cross beam assembly and reduce the risk of lifting.

[0063] The following describes the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the content of the application described in the claims. In addition, the entire content of the composition represented by the following embodiments is not limited to the solution required as the application described in the claims. It should be noted that, for the convenience of description, only the parts related to the relevant application are shown in the drawings. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0064] like Figure 1-Figure 4As shown, the undercarriage cross beam assembly disclosed in the embodiment of the present application includes an undercarriage cross beam body 100 and a reinforcing member 300. The undercarriage cross beam body 100 includes at least a cross beam upright plate 101 and a first display plate 102 and a second display plate 103 respectively arranged on both sides of the cross beam upright plate 101. The undercarriage cross beam body 100 may be an integrated structure, and the first display plate 102 and the second display plate 103 may be obtained by bending.

[0065] There are two undercarriage cross beams 100, and the cross beam upright plates 101 of the two undercarriage cross beams 100 are attached and welded, so that the two first display plates 102 of the two undercarriage cross beams 100 after welding extend to both sides respectively from the attached cross beam upright plates 101, and the two second display plates 103 also extend to both sides respectively from the attached cross beam upright plates 101. Figure 6 As shown, after the cross beam upright plates 101 of the two undercar cross beam bodies 100 are attached, a Y-shaped weld 108 is formed on the upper and lower sides of the contact point between the two (the Y-shaped weld 108 can be formed by providing an arc-shaped transition section at the connection between the cross beam upright plate 101 and the first display plate 102 and the second display plate 103). By welding at the Y-shaped weld 108, the welding strength of the two can be enhanced.

[0066] Taking the case where the underbody cross beam assembly is installed on the vehicle chassis, with the second display panel 103 located at the top and the first display panel 102 located at the bottom as an example, the first display panel 102 can be used as a lifting panel to achieve connection with the lifting equipment; the first display panel 102 can be used to support the floor above the vehicle chassis, or to support other components.

[0067] like Fig.10 and Fig.11 As shown, the end of the cross beam upright plate 101 is used to be welded to the side beam 400 of the vehicle chassis. The vehicle chassis has two parallel side beams 400, and the undercarriage cross beam assembly disclosed in this embodiment needs to be installed between the two side beams 400. Usually, the undercarriage cross beam assembly is welded to the side beam 400. In this embodiment, the end of the cross beam upright plate 101 is welded to the side beam 400.

[0068] At least one of the two undercarriage cross beams 100 is used to connect with the equipment to be hoisted, that is, a lifting point connected with the equipment to be hoisted can be set on only one of the undercarriage cross beams 100, or lifting points connected with the equipment to be hoisted can be set on both undercarriage cross beams 100.

[0069] For ease of understanding, the undercarriage cross beam body 100 connected to the equipment to be hoisted is defined as the undercarriage cross beam hoisting body, and the reinforcing member 300 is connected to the undercarriage cross beam hoisting body. The reinforcing member 300, as a reinforcing member for the hoisting point, only needs to be installed on the undercarriage cross beam hoisting body. The reinforcing member 300 is respectively connected to the first display board 102 and the second display board 103 of the undercarriage cross beam hoisting body, and the first display board 102 and the second display board 103 are connected and reinforced by the reinforcing member 300, so that when the equipment to be hoisted is hoisted on the first display board 102, it has a better load-bearing capacity, and prevents the hoisting risk caused by the deformation of the first display board 102.

[0070] The undercarriage cross beam assembly provided by the present application has two undercarriage cross beam bodies 100, and the two undercarriage cross beam bodies 100 are arranged back to back, so that the cross beam uprights 101 of the two undercarriage cross beam bodies 100 fit together, and are fixed by welding, so that the two undercarriage cross beam bodies 100 are connected as a whole, which greatly increases the strength and rigidity of the undercarriage cross beam assembly. A reinforcing piece 300 is added to the undercarriage cross beam hoisting body connected to the equipment to be hoisted in the two undercarriage cross beam bodies 100 to increase the strength of the connection of the equipment to be hoisted, and the hoisting point is strongly reinforced, reducing the hoisting risk.

[0071] In a specific embodiment of the present application, when the undercarriage cross beam assembly is installed on the vehicle chassis, the first display plate 102 is located below the second display plate 103 , and the first display plate 102 of the undercarriage cross beam hoisting body is a hoisting plate for connecting the equipment to be hoisted.

[0072] like Figure 4 As shown, a plurality of first lifting holes 104 are provided on the first display plate 102 of the undercarriage cross beam lifting body, and a second lifting hole 304 for connecting with the first lifting hole 104 is provided on the reinforcing member 300. The first lifting holes 104 and the second lifting holes 304 are used to pass the lifting bolts to fix the equipment to be lifted. The number of the first lifting holes 104 on the first display plate 102 can be designed according to the lifting points on the equipment to be lifted. Fig.14 As shown, four hoisting seats 21 are provided on both sides of the top of the equipment to be hoisted, and four first hoisting holes 104 need to be provided at corresponding positions on the first display board 102. It can be understood by those skilled in the art that other numbers of hoisting seats 21 can also be provided on one side of the equipment to be hoisted, that is, the number of first hoisting holes 104 on the first display board 102 is not limited to 4, and the number of first hoisting holes 104 can be set according to hoisting requirements.

[0073] In addition to the first hanging hole 104, the first display board 102 is also processed with a plurality of rows of through holes 107 (for example, two rows of circular holes with a radius of 10 mm can be processed), which not only facilitates the installation of the wiring bracket of the electrical equipment, but also significantly reduces the weight.

[0074] The reinforcing piece 300 can be set according to the number of the first hanging holes 104. At least one reinforcing piece 300 needs to be arranged at the position of each first hanging hole 104 (i.e., the position of the hanging point). At the position where the first hanging hole 104 is not set, the reinforcing piece 300 can be set or not.

[0075] like Figure 5 As shown, in a specific embodiment of the present application, the reinforcing member 300 may be provided with at least two second hoisting holes 304 arranged at intervals, and one of the second hoisting holes 304 of the reinforcing member 300 is connected to the first hoisting hole 104. In this embodiment, by providing at least two second hoisting holes 304 on the reinforcing member 300, only one of the second hoisting holes 304 can be selected to be connected to the corresponding first hoisting hole 104. In this way, different second hoisting holes 304 and first hoisting holes 104 can be selected according to needs, thereby adjusting the position of the reinforcing member 300 on the undercarriage cross beam hoisting body, and then it is convenient to avoid other components such as wiring harnesses on the vehicle chassis, providing conditions for avoiding the threading holes (i.e., the second weight-reducing holes 105 mentioned later) on the cross beam upright plate 101.

[0076] In this embodiment, the reinforcing member 300 may be designed as a "X"-shaped structure. Specifically, the reinforcing member 300 may include a reinforcing seat plate portion 301, a reinforcing upright plate portion 302, and a reinforcing extension plate portion 303. It should be noted that the reinforcing member 300 may be formed by bending. Figure 5 In order to facilitate understanding, the structure shown in the figure respectively names the parts as the reinforcement seat plate part 301 , the reinforcement vertical plate part 302 and the reinforcement extension plate part 303 .

[0077] There are two reinforcing upright plate parts 302, which are respectively connected to the two ends of the reinforcing seat plate part 301, and there are two reinforcing exhibition plate parts 303, which are connected to the end of the reinforcing upright plate part 302 away from the reinforcing seat plate part 301. The reinforcing seat plate part 301 is welded to the first exhibition plate 102 of the undercarriage cross beam hanging body, and the reinforcing exhibition plate part 303 is welded to the second exhibition plate 103 of the undercarriage cross beam hanging body. When the first exhibition plate 102 and the second exhibition plate 103 are parallel, the reinforcing seat plate part 301 and the reinforcing exhibition plate part 303 should also be parallel.

[0078] The reinforcement seat plate portion 301 and the reinforcement display plate portion 303 may be provided with welding holes 305 . During welding, the inner wall edges of the welding holes 305 may be welded to the corresponding plate surfaces of the first display plate 102 and the second display plate 103 by fillet welding.

[0079] In this embodiment, the reinforcement vertical plate portion 302 serves as a connecting portion between the reinforcement seat plate portion 301 and the reinforcement expansion plate portion 303 , and can be arranged vertically to the reinforcement seat plate portion 301 and the reinforcement expansion plate portion 303 , respectively, so as to obtain a better supporting effect in the vertical direction.

[0080] The projection of the reinforcement plate portion 303 on the plane where the reinforcement seat plate portion 301 is located does not overlap with the reinforcement seat plate portion 301. It can be understood that the two reinforcement vertical plate portions 302 and the reinforcement seat plate portion 301 form a U-shaped groove structure, and the reinforcement plate portion 303 extends to the outside of the U-shaped groove, so that the reinforcement plate portion 303 and the reinforcement seat plate portion 301 can be staggered with each other, ensuring that the reinforcement member 300 and the undercarriage cross beam body 100 have a larger welding area and improve the connection strength.

[0081] like Figure 4 As shown, a plurality of first weight-reducing holes 106 are provided on the second display plate 103 of the undercarriage cross beam hoisting body. In addition to weight reduction, the first weight-reducing holes 106 can also be used to pass electrical wiring harnesses and / or fix pipe clamps. The entire second display plate 103 may not be on the same plane, but may be a folded plate structure, specifically including three parts, the first part is connected to the cross beam vertical plate 101, the third part has the first weight-reducing holes 106, the second part connects the first part and the third part, and the first part and the third part may be arranged in parallel.

[0082] The first part and the second part of the second display board 103 and the crossbeam vertical board 101 form a slot structure, and the reinforcing display board portion 303 of the reinforcing member 300 is embedded in the slot structure. The slot structure limits the reinforcing display board portion 303, which can improve the fixing reliability of the reinforcing member 300. In addition, the second lifting hole 304 can be easily aligned with the first lifting hole 104 by limiting the reinforcing display board portion 303 and the slot structure.

[0083] It can be understood by those skilled in the art that a plurality of second weight-reducing holes 105 are provided on the cross beam upright plate 101. In addition to the weight-reducing function, the second weight-reducing holes 105 can also be used to pass through electrical conduits, so that the electrical conduits on the vehicle chassis of the rail vehicle can pass through the undercarriage cross beam assembly through the second weight-reducing holes 105, and the undercarriage cross beam assembly will not affect the arrangement of the electrical conduits. The positions and sizes of the second weight-reducing holes 105 on the cross beam upright plates 101 of the two undercarriage cross beam bodies 100 should be the same, so that the second weight-reducing holes 105 on the two undercarriage cross beam bodies 100 after welding remain in a connected state, which not only achieves the weight-reducing effect, but also facilitates the use of electrical equipment conduits for threading.

[0084] Since the thickness of the cross beam upright plate 101 is relatively thin and the width of the upper and lower sides of the side beam 400 (which is a U-shaped groove structure) is relatively narrow, if the end face of the cross beam upright plate 101 is directly welded to the side beam 400, the contact area between the cross beam upright plate 101 and the upper and lower sides of the side beam 400 will be relatively small, resulting in insufficient welding strength.

[0085] like Figure 1 , Figure 2 and Figure 7-Figure 9As shown, in a specific embodiment of the present application, the undercarriage cross beam assembly may further include a reinforcement 200 , and a reinforcement 200 is provided at either end of the two cross beam uprights 101 , and the cross beam uprights 101 are welded to the side beam 400 through the reinforcement 200 .

[0086] That is, in this embodiment, the reinforcement 200 is first welded to both ends of the cross beam upright plate 101, and then the reinforcement 200 is welded to the side beam 400 to increase the welding area, obtain more welding points, and improve the welding strength. The undercar cross beam body 100 and the reinforcement 200 can both be made of austenitic stainless steel plate material and are formed by bending.

[0087] Specifically, both ends of the crossbeam plate 101 extend beyond the first display plate 102 and the second display plate 103. In other words, the first display plate 102 and the second display plate 103 do not extend to the ends of the crossbeam plate 101, so that the protruding portions of the ends of the crossbeam plate 101 can be inserted into the reinforcement 200 for welding.

[0088] like Fig.12 As shown, welding grooves are provided at the connection between the cross beam plate 101 and the first and second plates 102 and 103, and welding grooves 1011 are provided at the end faces of the first and second plates 102 and 103 facing the reinforcement 200. The parts of the two cross beam plates 101 extending outside the first and second plates 102 and 103 are inserted into the embedded grooves of the reinforcement 200 and welded to the inner wall 1012 of the reinforcement 200. That is, the upper side, lower side and end surface of the cross beam plate 101 inserted into the embedded groove of the reinforcement 200 are welded to the inner wall 1012 of the corresponding side of the reinforcement 200 by fillet welding. The welding grooves 1011 of the first and second plates 102 and 103 are welded to the end faces of the reinforcement 200, so that the undercar cross beam assembly is integrated with the side beam 400 and the reinforcement 200, which can significantly improve the hoisting strength of the undercar cross beam assembly.

[0089] In a specific embodiment of the present application, the reinforcement member 200 is a U-shaped groove plate, and the cross beam plate 101 is inserted into the reinforcement member 200 and fixed by welding. Figure 7-Figure 9 As shown, the groove bottom wall of the reinforcement member 200 is attached to and welded with the vertical surface of the side beam 400, and the two groove side walls of the reinforcement member 200 are respectively attached to the two horizontal surfaces of the side beam 400 and are welded alternately.

[0090] Specifically, when the cross beam upright plate 101 is welded to the side beam 400 through the reinforcement 200, the reinforcement 200 is first connected to the side beam 400 by resistance spot welding, and then the cross beam upright plate 101 and the reinforcement 200 are welded. The upper and lower surfaces of the reinforcement 200 are alternately welded to the undercarriage cross beam (such as Fig. 9 The groove bottom wall of the reinforcement member 200 and the vertical surface of the side beam 400 are evenly provided with 3 rows and 5 columns of welding points (such as Figure 8 It should be noted that the number of the welding points 201 is not limited to 3 rows and 5 columns, and those skilled in the art can adopt other numbers or other arrangements according to needs. In this embodiment, the welding points are arranged reasonably, with relatively more points, which can significantly increase the welding strength between the reinforcement 200 and the side beam 400.

[0091] like Figure 13-Figure 16 As shown, the embodiment of the present application further discloses a rail vehicle, which includes a vehicle chassis and equipment to be hoisted 20. The equipment to be hoisted 20 may be a battery box, or other equipment, and is not limited to a battery box. The vehicle chassis is provided with an undercarriage crossbeam assembly 10 as disclosed in the above embodiment. A hoisting seat 21 is provided on the equipment to be hoisted 20, and the hoisting seat 21 is connected to the undercarriage crossbeam hoisting body of the undercarriage crossbeam assembly 10 through a hoisting bolt 30. The rail vehicle disclosed in the embodiment of the present application, since it has the above-mentioned undercarriage crossbeam assembly 10, has all the technical effects of the above-mentioned undercarriage crossbeam assembly 10, which will not be repeated herein.

[0092] like Fig.10 and Fig.11 As shown, the equipment 20 to be hoisted can be hoisted by two under-vehicle cross beam assemblies 10, and the under-vehicle cross beam hoisting bodies with hoisting points of the two under-vehicle cross beam assemblies 10 can be located on the outside, which can increase the contact area between the hoisting seat 21 of the equipment 20 to be hoisted and the under-vehicle cross beam assembly 10, so that the equipment 20 to be hoisted can be installed more firmly.

[0093] like Fig.15 and Fig.16 As shown, in a specific embodiment of the present application, a third lifting hole 22 is opened on the lifting seat 21. In order to facilitate the insertion of the lifting bolt 30, the first lifting hole 104, the second lifting hole 304 and the third lifting hole 22 can all be waist-shaped holes. With such an arrangement, even if there are processing errors, it is easy to align and connect the first lifting hole 104, the second lifting hole 304 and the third lifting hole 22.

[0094] The first hoisting hole 104 and the second hoisting hole 304 extend in the same direction, the third hoisting hole 22 extends in a direction perpendicular to the first hoisting hole 104, and the hoisting seat 21 passes through the first hoisting hole 104, the second hoisting hole 304 and the third hoisting hole 22 through the hoisting bolts 30 and is connected to the under-vehicle cross beam hoisting body.

[0095] For example, the extension direction of the third hoisting hole 22 can be designed to be the length direction of the vehicle, and the extension direction of the first hoisting hole 104 and the second hoisting hole 304 can be designed to be the width direction of the vehicle, so as to realize the adjustable installation of the equipment 20 to be hoisted, that is, the equipment 20 to be hoisted can be fine-tuned according to the needs, and the connectivity of each hoisting hole can also be ensured. The undercarriage cross beam assembly 10 can be adjusted in the vehicle underframe vehicle length direction according to the size of the equipment 20 to be hoisted (the distance between the two undercarriage cross beam assemblies 10 can be adjusted according to the size of the equipment 20 to be hoisted), which will greatly meet the installation requirements of the equipment 20 to be hoisted. When the size of the equipment 20 to be hoisted in the vehicle length direction needs to be increased or decreased, the installation requirements of the equipment 20 to be hoisted can be met by adjusting the distance between the two equipment 20 to be hoisted.

[0096] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0097] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0098] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0099] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A cross beam assembly under a vehicle, characterized in that: include: An undercarriage cross beam body (100), the undercarriage cross beam body (100) comprising at least a cross beam upright plate (101) and a first display plate (102) and a second display plate (103) respectively arranged on both sides of the cross beam upright plate (101), the undercarriage cross beam body (100) being two, the cross beam upright plates (101) of the two undercarriage cross beam bodies (100) being bonded and welded, and the ends of the cross beam upright plates (101) being used for welding to the side beams (400) of the vehicle underframe; A reinforcing member (300), at least one of the two under-vehicle cross beam bodies (100) is used to connect to the equipment to be hoisted, the under-vehicle cross beam body (100) used to connect to the equipment to be hoisted is defined as an under-vehicle cross beam hoisting body, the reinforcing member (300) is connected to the under-vehicle cross beam hoisting body, and is respectively connected to a first display panel (102) and a second display panel (103) of the under-vehicle cross beam hoisting body.

2. The undercarriage cross beam assembly according to claim 1, characterized in that: When the under-vehicle cross beam assembly is installed on the vehicle chassis, the first display plate (102) is located at the lower side of the second display plate (103), and the first display plate (102) of the under-vehicle cross beam hoisting body is a hoisting plate used for connecting equipment to be hoisted; A plurality of first hoisting holes (104) are provided on the first display plate (102) of the under-vehicle cross beam hoisting body, and second hoisting holes (304) for communicating with the first hoisting holes (104) are provided on the reinforcing member (300).

3. The undercarriage cross beam assembly according to claim 2, characterized in that: Each of the first hanging holes (104) is provided with a corresponding reinforcing piece (300), the reinforcing piece (300) is provided with at least two second hanging holes (304) arranged at intervals, and one of the second hanging holes (304) of the reinforcing piece (300) is connected to the first hanging hole (104); and / or, A plurality of first weight-reducing holes (106) are provided on the second display plate (103) of the under-vehicle cross beam hoisting body. The first weight-reducing holes (106) are used for passing electrical wiring harnesses and / or fixing pipe clamps.

4. The undercarriage cross beam assembly according to claim 2, characterized in that: The reinforcing piece (300) comprises a reinforcing seat plate portion (301), a reinforcing upright plate portion (302) and a reinforcing display plate portion (303); There are two reinforcing upright plate portions (302), which are respectively connected to the two ends of the reinforcing seat plate portion (301); there are two reinforcing extension plate portions (303), which are connected to one end of the reinforcing upright plate portion (302) away from the reinforcing seat plate portion (301); The reinforcing seat plate portion (301) is welded to the first display plate (102) of the under-vehicle cross beam hanging body, and the reinforcing display plate portion (303) is welded to the second display plate (103) of the under-vehicle cross beam hanging body.

5. The undercarriage cross beam assembly according to claim 4, characterized in that: The reinforcing upright plate portion (302) is perpendicular to the reinforcing seat plate portion (301), and the reinforcing expansion plate portion (303) is perpendicular to the reinforcing upright plate portion (302); The projection of the reinforcement display panel portion (303) on the plane where the reinforcement seat plate portion (301) is located does not overlap with the reinforcement seat plate portion (301).

6. The undercarriage cross beam assembly according to any one of claims 1 to 5, characterized in that: It also includes a reinforcement member (200), wherein the reinforcement member (200) is provided at any one end of the two cross beam upright plates (101), and the cross beam upright plates (101) are welded to the side beam (400) via the reinforcement member (200); and / or, A plurality of second weight-reducing holes (105) are provided on the crossbeam upright plate (101), and the second weight-reducing holes (105) are used for passing electrical wire tubes.

7. The undercarriage cross beam assembly according to claim 6, characterized in that: Both ends of the crossbeam upright plate (101) extend outwardly from the first display plate (102) and the second display plate (103); Welding grooves are provided at the connection points between the crossbeam upright plate (101) and the first display plate (102) and the second display plate (103); and welding grooves (1011) are provided on the end surfaces of the first display plate (102) and the second display plate (103) facing the reinforcement member (200); The portion of the crossbeam upright plate (101) extending outside the first display plate (102) and the second display plate (103) is inserted into the embedding groove of the reinforcement member (200) and welded to the inner wall (1012) of the reinforcement member (200); The welding grooves (1011) of the first display panel (102) and the second display panel (103) are welded to the end surface of the reinforcement member (200).

8. The undercarriage cross beam assembly according to claim 6, characterized in that: The reinforcement member (200) is a U-shaped groove plate, and the crossbeam upright plate (101) is inserted into the reinforcement member (200) and fixed by welding; The groove bottom wall of the reinforcement member (200) is affixed to and welded to the vertical surface of the side beam (400), and the two groove side walls of the reinforcement member (200) are respectively affixed to two horizontal surfaces of the side beam (400) and are welded in an alternating manner.

9. A rail vehicle, characterized in that: include: A vehicle underframe, the vehicle underframe being provided with an under-vehicle cross beam assembly (10) according to any one of claims 1 to 8; The equipment to be hoisted (20) is provided with a hoisting seat (21), and the hoisting seat (21) is connected to the under-vehicle crossbeam hoisting body via a hoisting bolt (30).

10. A rail vehicle, characterized in that: include: A vehicle underframe, the vehicle underframe being provided with an under-vehicle cross beam assembly (10) according to any one of claims 2 to 5; A device to be hoisted (20), wherein the device to be hoisted (20) is provided with a hoisting seat (21), and a third hoisting hole (22) is opened on the hoisting seat (21); the first hoisting hole (104), the second hoisting hole (304) and the third hoisting hole (22) are all waist-shaped holes; the first hoisting hole (104) and the second hoisting hole (304) extend in the same direction; the third hoisting hole (22) extends in a direction perpendicular to the first hoisting hole (104); and the hoisting seat (21) is connected to the undercarriage crossbeam hoisting body by means of a hoisting bolt (30) that passes through the first hoisting hole (104), the second hoisting hole (304) and the third hoisting hole (22).

Images