Urban vehicle pre-assembling and assembling rack vehicle transition beam and urban vehicle pre-assembling and assembling rack vehicle

By designing a pre-assembled frame transition beam for urban rail vehicles and utilizing movable side bearing support components and connecting components, the problem of urban rail vehicles being unable to be mounted was solved, achieving stable support for different vehicle bodies and cost-effectiveness.

CN224102766UActive Publication Date: 2026-04-10BEIJING CRRC CHANGKE ERQI RAILWAY EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The structural characteristics of urban vehicles make it impossible to connect and support them with the underlying bolster beams of the vehicle body using traditional transition beams, thus making it impossible to achieve vehicle mounting.

Method used

Design a transition beam for a pre-assembled urban vehicle frame, including a main beam and side support components. The side support components are movable and fit together, supporting the vehicle body connecting blocks through the avoidance surface. Connecting components are set on the main beam to connect with the dummy trolley, thereby enhancing structural stability and applicability.

Benefits of technology

It achieves adaptive support for car bodies of different widths, improves the reliability and stability of the frame, reduces production costs, and enhances the applicability and reliability of the transition beam.

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Abstract

The utility model relates to the technical field of railway vehicle manufacturing, in particular to a city vehicle pre-assembly unwheeling transition beam and a city vehicle pre-assembly unwheeling, two side bearing supporting assemblies are used for supporting connecting blocks on the two sides of a vehicle body in a one-to-one correspondence mode, an avoiding face is formed on a main beam, the avoiding face is used for facing the vehicle body, and the side bearing supporting assemblies are used for supporting the connecting blocks on the two sides of the vehicle body in a one-to-one correspondence mode. The avoiding face extends from one side bearing supporting assembly to the other side bearing supporting assembly in the first direction, the avoiding face extends from one end of the main beam to the other end of the main beam in the second direction, and the length direction of the main beam is parallel to the first direction. The second direction is parallel to the avoiding surface, and the second direction is perpendicular to the first direction. The utility model aims to provide a transition beam for a city vehicle preassembling and assembling rack vehicle and the city vehicle preassembling and assembling rack vehicle in order to solve at least one technical problem related to the background technology.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rail vehicle manufacturing, in particular to a city car pre-assembly assembly car transition beam and a city car pre-assembly assembly car. BACKGROUND

[0002] In order to realize the pre-assembly of the city car, the vehicle needs to be stably lifted by the car lifting device, and the height from the vehicle to the ground is about 1800mm. Usually, a false trolley is used to install a car transition beam, and the transition beam is connected and supported with the lower bolster beam of the vehicle body, thereby realizing the lifting of the car. Limited by the structural characteristics of a city car, the city car bolster structure is integrated and installed above the bogie, thereby the conventional method of connecting and supporting the transition beam with the lower bolster beam of the vehicle body cannot be used to realize the lifting of the car. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to solve at least one technical problem involved in the background art, and provides a city car pre-assembly assembly car transition beam and a city car pre-assembly assembly car.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0005] One aspect of the present application provides a city car pre-assembly assembly car transition beam, which comprises a main beam and two side bearing support assemblies. The two side bearing support assemblies are installed at the two ends of the main beam in a one-to-one correspondence in a first direction, and are used to support the two side connecting blocks of the vehicle body in a one-to-one correspondence. An avoiding surface is formed on the main beam, which is used to face the vehicle body. The avoiding surface extends from one side bearing support assembly to another side bearing support assembly in the first direction. The avoiding surface extends from one end of the main beam to the other end of the main beam in a second direction. The length direction of the main beam is parallel to the first direction. The second direction is parallel to the avoiding surface, and the second direction is perpendicular to the first direction.

[0006] Optionally, the side bearing support assembly is used to movably cooperate with the main beam in the first direction.

[0007] The beneficial effects of this technical solution are that the distance between the two side bearing support assemblies can be adjusted to adapt to vehicle bodies of different widths, thereby improving the applicability of the city car pre-assembly assembly car transition beam.

[0008] Optionally, the side bearing support assembly comprises a support and a sliding groove plate, the sliding groove plate is fixed to the main beam, a sliding groove extending in the first direction is formed on the sliding groove plate, one end of the support in the third direction is a support end for supporting the connecting block, the other end of the support is a fitting end, the fitting end is in sliding fit with the sliding groove in the first direction, and the first direction and the second direction are both perpendicular to the third direction.

[0009] The beneficial effects of the technical scheme are that the movement of the support can be realized by moving the support relative to the sliding groove plate, and the distance between the two supports in the first direction is adjusted, and meanwhile, the sliding groove plate can also limit the support in other directions, thereby improving the stability of the installation of the support.

[0010] Optionally, the sliding groove plate and the avoiding surface are located on the same side of the main beam.

[0011] The beneficial effects of the technical scheme are that the bottom end of the support can act on the main beam, and the main beam can bear the weight of the vehicle body, thereby improving the reliability and stability of the support of the vehicle body.

[0012] Optionally, the distance between the two supports in the first direction is L, and 2200mm≤L≤2900mm.

[0013] The beneficial effects of the technical scheme are that the distance L between the two supports can be adjusted between 2200mm and 2900mm by sliding the two supports relative to the sliding groove plate, which improves the applicability of the pre-assembly of the city vehicle frame vehicle transition beam, and does not need to set a longer sliding groove and sliding groove plate, thereby reducing the production cost.

[0014] Optionally, the city vehicle pre-assembly frame vehicle transition beam provided in the application further comprises a connecting assembly, the connecting assembly is detachably fixed to the middle part of the main beam in the first direction, the two side bearing support assemblies are located on one side of the main beam in the third direction, and the connecting assembly is located on the other side of the main beam, and the first direction and the second direction are both perpendicular to the third direction.

[0015] The beneficial effects of the technical scheme are that the connecting assembly is specially set to realize the connection between the city vehicle pre-assembly frame vehicle transition beam and the false trolley, instead of directly connecting the main beam with the false trolley, and a suitable connecting assembly can be selected according to the structure of the vehicle body, thereby further improving the applicability of the city vehicle pre-assembly frame vehicle transition beam.

[0016] Optionally, the connecting assembly comprises a connecting beam, a first flange plate and a second flange plate, the connecting beam extends along the third direction, the first flange plate is fixed to one end of the connecting beam along the third direction, the second flange plate is fixed to the other end of the connecting beam along the third direction, the first flange plate is fixedly connected with the main beam, and the second flange plate is used for detachably fixedly connecting with the dummy trolley.

[0017] The beneficial effects of the technical scheme are that: in this way, a suitable connecting assembly can be selected according to the structure of the dummy trolley to ensure the smooth connection between the main beam and the dummy trolley, thereby improving the applicability of the transit beam of the pre-assembly frame of the city car.

[0018] Optionally, the transit beam of the pre-assembly frame of the city car provided in the application further comprises a third flange plate and a plurality of reinforcing ribs, the third flange plate is fixed to one side of the main beam along the third direction, the two ends of the third flange plate extend out from the two sides of the main beam along the second direction, the first flange plate is fixedly connected with the third flange plate, the reinforcing ribs are arranged perpendicular to the first direction, each of the reinforcing ribs is arranged along the first direction, and the reinforcing rib comprises two connecting edges perpendicular to each other, one of the connecting edges is fixed to the main beam, and the other of the connecting edges is fixed to the third flange plate.

[0019] The beneficial effects of the technical scheme are that: since the two ends of the main beam are used for bearing the weight of the car body, the middle part of the main beam is connected with the dummy trolley to form a fulcrum, so that the middle part of the main beam bears a large bending moment, and by arranging the third flange plate and the reinforcing ribs in the middle part of the main beam, the strength of the middle part of the main beam can be improved, thereby improving the bending resistance of the main beam and improving the reliability of the transit beam of the pre-assembly frame of the city car.

[0020] Optionally, the transit beam of the pre-assembly frame of the city car provided in the application further comprises a lower support plate fixed to the main beam, the lower support plate and the connecting assembly are located on the same side of the main beam, and the lower support plate is used for abutting against a lower side bearing member on the dummy trolley.

[0021] The beneficial effects of the technical scheme are that: the lower support plate is specially arranged on the main beam to abut against the lower side bearing member on the dummy trolley, thereby avoiding the problem that the stress of the main beam is concentrated and the main beam is easily damaged due to the direct pressure contact between the lower side bearing member on the dummy trolley and the main beam, and the reliability of the transit beam of the pre-assembly frame of the city car is further improved.

[0022] Another aspect of the application provides a pre-assembly frame of a city car, which comprises a dummy trolley and the transit beam of the pre-assembly frame of the city car provided in the application, and the transit beam of the pre-assembly frame of the city car is installed on the dummy trolley.

[0023] The technical scheme provided in the application can achieve at least one of the following beneficial effects:

[0024] The city bus pre-assembly frame provided by the application comprises a main beam, a connecting beam, a first flange plate, a second flange plate, a third flange plate, a reinforcing rib, a reverse T-shaped end, and an avoiding surface.

[0025] The additional technical features and advantages of the application will be more apparent in the following description or can be understood by the specific practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly explain the technical solutions of the specific embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative labor on the basis of these drawings.

[0027] Figure 1 A front view structural schematic diagram of one embodiment of the city bus pre-assembly frame transition beam provided by the application;

[0028] Figure 2 A side view structural schematic diagram of one embodiment of the city bus pre-assembly frame transition beam provided by the application.

[0029] LIST OF REFERENCE NUMERALS

[0030] 01, support piece; 02, sliding groove plate;

[0031] 03, main beam; 04, connecting beam;

[0032] 05, second flange plate; 06, first flange plate;

[0033] 07, third flange plate; 08, reinforcing rib;

[0034] 09, reverse T-shaped end; 10, avoiding surface. DETAILED DESCRIPTION

[0035] The technical solutions of the application will be described clearly and completely in the following in combination with the drawings. Obviously, the described embodiments are some embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without any creative labor belong to the protection scope of the application.

[0036] In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present application, it should be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] As shown in Figure 1 and Figure 2 One aspect of the present application provides a city car pre-assembly frame car transition beam, comprising a main beam 03 and two side bearing support assemblies, two said side bearing support assemblies are installed on both ends of the main beam 03 in the first direction, two said side bearing support assemblies are used to support the side connecting blocks of the car body one by one, an avoidance surface 10 is formed on the main beam 03, the avoidance surface 10 is used to face the car body, the avoidance surface 10 extends from one side bearing support assembly to another side bearing support assembly in the first direction, the avoidance surface 10 extends from one end of the main beam 03 to the other end of the main beam 03 in the second direction, the length direction of the main beam 03 is parallel to the first direction, the second direction is parallel to the avoidance surface 10, and the second direction is perpendicular to the first direction.

[0039] The city car pre-assembly frame car transition beam provided by the present application is used, the main beam 03 is placed horizontally above the false trolley, the first direction is horizontal, the avoidance surface 10 is arranged between the two side bearing support assemblies instead of the traditional bearing seat for supporting the car body, the two side bearing support assemblies are used to support the side connecting blocks of the car body one by one to achieve the support of the car body, and then the purpose of frame car is achieved.

[0040] Optionally, the side bearing support assembly is used for movable cooperation with the main beam 03 in the first direction. In this way, the distance between the two side bearing support assemblies can be adjusted to adapt to car bodies of different widths, improving the applicability of the city car pre-assembly frame car transition beam.

[0041] Optionally, the side bearing support assembly comprises a support 01 and a sliding groove plate 02, the sliding groove plate 02 is fixed to the main beam 03, a sliding groove extending in the first direction is formed on the sliding groove plate 02, one end of the support 01 in the third direction is a support end for supporting the connecting block, the other end of the support 01 is a matching end, the matching end is in sliding fit with the sliding groove in the first direction, and the first direction and the second direction are both perpendicular to the third direction. In this way, the movement of the support 01 can be realized by moving the support 01 relative to the sliding groove plate 02, and the distance between the two supports 01 in the first direction is adjusted at the same time. Meanwhile, the sliding groove plate 02 can also limit the support 01 in other directions, thereby improving the stability of the installation of the support 01. Of course, a groove extending in the first direction can also be formed on the main beam 03, and the support 01 is in sliding fit with the groove in the first direction. In the embodiment of the application, the matching end preferably comprises two inverted T-shaped end portions 09, two inverted T-shaped grooves are formed on the sliding groove plate 02, and the two inverted T-shaped end portions 09 are in sliding fit with the two inverted T-shaped grooves one by one.

[0042] Optionally, the sliding groove plate 02 and the avoiding surface 10 are located on the same side of the main beam 03. In this way, the bottom end of the support 01 can act on the main beam 03, so that the main beam 03 bears the weight of the vehicle body, thereby improving the reliability and stability of the support of the vehicle body. Of course, the sliding groove plate 02 can also be installed on the side of the main beam 03 perpendicular to the avoiding surface 10.

[0043] Optionally, the distance between the two supports 01 in the first direction is L, and 2200mm≤L≤2900mm. That is to say, the distance L between the two supports 01 can be adjusted between 2200mm and 2900mm by sliding the two supports 01 relative to the sliding groove plate 02, which improves the applicability of the pre-assembly of the city bus frame vehicle transition beam and reduces the production cost without the need to set a longer sliding groove and sliding groove plate 02.

[0044] Optionally, the city bus pre-assembly frame vehicle transition beam provided by the embodiment of the application further comprises a connecting assembly, the connecting assembly is detachably fixed to the middle part of the main beam 03 in the first direction, the two side bearing support assemblies are located on one side of the main beam 03 in the third direction, and the connecting assembly is located on the other side of the main beam 03, and the first direction and the second direction are both perpendicular to the third direction. The connecting assembly is specially set to realize the connection between the city bus pre-assembly frame vehicle transition beam and the false trolley, instead of directly connecting the main beam 03 with the false trolley, so that a suitable connecting assembly can be selected according to the structure of the vehicle body, and the applicability of the city bus pre-assembly frame vehicle transition beam is further improved. Of course, the main beam 03 can also be directly fixedly connected with the false trolley.

[0045] Optionally, the connecting assembly comprises a connecting beam 04, a first flange plate 06 and a second flange plate 05, the connecting beam 04 extends along the third direction, the first flange plate 06 is fixed to one end of the connecting beam 04 along the third direction, the second flange plate 05 is fixed to the other end of the connecting beam 04 along the third direction, the first flange plate 06 is fixedly connected with the main beam 03, and the second flange plate 05 is used for detachably fixedly connected with the dummy trolley. In this way, a suitable connecting assembly can be selected according to the structure of the dummy trolley to ensure the smooth connection between the main beam 03 and the dummy trolley, thereby improving the applicability of the transit beam of the pre-assembly rack of the city car. Of course, the connecting assembly and the dummy trolley can also be non-detachably fixedly connected.

[0046] Optionally, the transit beam of the pre-assembly rack of the city car provided in the embodiment of the application further comprises a third flange plate 07 and a plurality of reinforcing ribs 08, the third flange plate is fixed to one side of the main beam 03 along the third direction, the two ends of the third flange plate 07 extend out from the two sides of the main beam 03 along the second direction, the first flange plate 06 is fixedly connected with the third flange plate 07, the reinforcing ribs 08 are arranged perpendicular to the first direction, each of the reinforcing ribs 08 is arranged along the first direction, and the reinforcing rib 08 comprises two connecting edges perpendicular to each other, one of the connecting edges is fixed to the main beam 03, and the other connecting edge is fixed to the third flange plate 07. Since the two ends of the main beam 03 are used for bearing the weight of the vehicle body, the middle part of the main beam 03 is connected with the dummy trolley to form a fulcrum, so that the middle part of the main beam 03 bears a large bending moment. By arranging the third flange plate 07 and the reinforcing ribs 08 in the middle part of the main beam 03, the strength of the middle part of the main beam 03 can be improved, thereby improving the bending resistance of the main beam 03 and improving the reliability of the transit beam of the pre-assembly rack of the city car. In the embodiment of the application, preferably, the adjacent flange plates are directly connected by bolts.

[0047] Optionally, the transit beam of the pre-assembly rack of the city car provided in the embodiment of the application further comprises a lower support plate fixed to the main beam 03, the lower support plate is located on the same side of the main beam 03 as the connecting assembly, and the lower support plate is used for abutting against a lower side bearing member on the dummy trolley. By specially arranging the lower support plate on the main beam 03 to abut against the lower side bearing member on the dummy trolley, the problem that the main beam 03 is easily damaged due to stress concentration caused by direct pressure contact between the lower side bearing member on the dummy trolley and the main beam 03 is avoided, and the reliability of the transit beam of the pre-assembly rack of the city car is further improved.

[0048] Another aspect of the application provides a pre-assembly rack of a city car, which comprises a dummy trolley and the transit beam of the pre-assembly rack of the city car provided in the embodiment of the application.

[0049] The city car pre-assembly frame provided by the application adopts the transition beam of the city car pre-assembly frame provided by the application, in use, the main beam 03 is horizontally placed above the false trolley, the first direction is horizontal, the avoiding surface 10 is arranged between the two side bearing support assemblies instead of the traditional bearing seat for supporting the vehicle body, the two side bearing support assemblies are used to support the two side connecting blocks of the vehicle body one by one to support the vehicle body, and the purpose of frame is achieved.

[0050] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, but not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A metropolis area vehicle pre-assembly rack vehicle transition beam, characterized by, The main beam and two side bearing support assemblies, two said side bearing support assemblies are installed on both ends of the main beam in the first direction, and two said side bearing support assemblies are used to support the connecting blocks on both sides of the vehicle body, the main beam is provided with a avoiding surface, the avoiding surface is used to face the vehicle body, the avoiding surface extends from one said side bearing support assembly to another said side bearing support assembly in the first direction, the avoiding surface extends from one end of the main beam to the other end of the main beam in the second direction, the length direction of the main beam is parallel to the first direction, the second direction is parallel to the avoiding surface, and the second direction is perpendicular to the first direction.

2. The metropolis area car pre-assembled rack car transition beam according to claim 1, characterized in that, The side bearing support assembly is used to moveably cooperate with the main beam in the first direction.

3. The metropolis area car pre-assembled rack car transition beam according to claim 2, characterized in that, The side bearing support assembly includes a support and a sliding groove plate, the sliding groove plate is fixed to the main beam, the sliding groove plate is provided with a sliding groove extending in the first direction, one end of the support in the third direction is a support end used to support the connecting block, the other end of the support is a cooperation end, the cooperation end is in sliding cooperation with the sliding groove in the first direction, and the first direction and the second direction are both perpendicular to the third direction.

4. The metropolis area car pre-assembled rack car transition beam according to claim 3, characterized in that, The sliding groove plate and the avoiding surface are located on the same side of the main beam.

5. The metropolis area vehicle pre-assembled rack over transition beam according to claim 3, wherein, The distance between the two supports in the first direction is L, and 2200mm≤L≤2900mm.

6. The metropolis area vehicle pre-assembly rack vehicle transition beam of claim 1, wherein, It also includes a connecting assembly, which is detachably fixed to the middle of the main beam in the first direction, and two said side bearing support assemblies are located on one side of the main beam in the third direction, and the connecting assembly is located on the other side of the main beam, and the first direction and the second direction are both perpendicular to the third direction.

7. The metropolis area vehicle pre-assembled rack-over transition beam of claim 6, wherein, The connecting assembly includes a connecting beam, a first flange plate and a second flange plate, the connecting beam extends in the third direction, the first flange plate is fixed to one end of the connecting beam in the third direction, the second flange plate is fixed to the other end of the connecting beam, the first flange plate is fixedly connected with the main beam, and the second flange plate is used to be detachably fixedly connected with the false trolley.

8. The metropolis area vehicle pre-assembled rack over transition beam according to claim 7, wherein, It also includes a third flange plate and a plurality of reinforcing ribs, the third flange plate is fixed to one side of the main beam in the third direction, both ends of the third flange plate extend out from both sides of the main beam in the second direction, the first flange plate is fixedly connected with the third flange plate, the reinforcing ribs are arranged perpendicular to the first direction, each reinforcing rib is arranged in the first direction, and the reinforcing rib includes two connecting edges perpendicular to each other, one connecting edge is fixed to the main beam, and the other connecting edge is fixed to the third flange plate.

9. The metropolis area vehicle pre-assembled chassis vehicle transition beam according to any one of claims 6-8, wherein, It also includes a lower support plate fixed to the main beam, the lower support plate is located on the same side of the main beam as the connecting assembly, and the lower support plate is used to abut against the lower side bearing of the false trolley.

10. A city car pre-assembly jig, characterised in that, The false trolley and the city bus pre-assembly rack car transition beam as claimed in any one of claims 1 to 9 are installed on the false trolley.