Sleeper beam, sleeper beam floor structure and processing method of sleeper beam and sleeper beam floor structure
The modular bolster beam structure formed by welding multiple bolster beam modules solves the problem of how to reduce the weight of bolster beam while meeting the load bearing capacity, and achieves both weight reduction and traction beam docking.
Patent Information
- Application Number
- CN202510298107.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-05-23
AI Technical Summary
How to reduce the weight of the pillow beam while meeting the load-bearing capacity, while ensuring the connection between the pull beam and the pillow beam.
Multiple pillow beam modules are used to form the pillow beam body. The height of the middle area is greater than the end area. The traction beam interface is set in the middle area, allowing the traction beam to design the height according to its own load-bearing capacity, and the overall weight of the pillow beam is reduced through a modular structure.
On the premise of meeting the load bearing capacity, the weight of the pillow beam is reduced, the design process is simplified, the design cost is reduced, and the reliable connection between the traction beam and the pillow beam is ensured.
Smart Images
Figure CN120024367A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of rail vehicles, and more specifically, to a bolster, a bolster floor structure, and a processing method of the bolster, and the bolster floor structure. Background Art
[0002] The underframe of a rail vehicle is the basic part of the vehicle body, bearing the weight of the vehicle body and the installation of various equipment to ensure the stability and safety of the train. The bolster and traction beam are both important components of the underframe. The bolster is the connecting mechanism between the bogie and the vehicle body, while the traction beam mainly bears and transmits traction, braking and impact forces. The bolster is provided with a traction beam interface, a bogie traction seat interface and a bogie air spring interface. The bogie air spring interface is used to connect the bogie air spring, which plays a role in supporting the vehicle body and bogie, bearing the weight and impact force of the vehicle or equipment, and ensuring the stability and driving smoothness of the vehicle or equipment. The function of the traction beam is to transmit the traction and braking force of the vehicle or equipment to the adjacent vehicle, while bearing the impact force of the vehicle or equipment to ensure the safe and stable operation of the vehicle or equipment.
[0003] One end of the traction beam is welded to the bolster. Since the traction beam needs to transmit traction and braking forces, it needs to be designed with a larger height dimension to ensure the corresponding bearing capacity. Since the end of the traction beam is welded to the middle part of the bolster, in order to ensure that the upper and lower surfaces of the two are aligned, the height dimension of the bolster needs to be designed to be the same as the height dimension of the traction beam. However, according to the force conditions, the bearing capacity requirements of the bolster are relatively low, which results in a larger height dimension and heavier weight of the bolster.
[0004] Therefore, how to reduce the weight of the bolster while meeting the bearing capacity and at the same time ensuring the docking of the traction beam and the bolster is an urgent problem to be solved by technical personnel in this field. Summary of the invention
[0005] In view of this, the object of the present application is to provide a bolster beam, so as to reduce the weight of the bolster beam while meeting the bearing capacity, and at the same time ensure the docking of the traction beam and the bolster beam; Another object of the present application is to provide a bolster floor structure having the above-mentioned bolster, and a processing method of the bolster and the bolster floor structure.
[0006] To achieve the above objectives, this application provides the following technical solutions: In a first aspect, the present application provides a bolster, comprising a plurality of bolster modules, wherein the bolster modules are welded together to form a bolster body, wherein the bolster body comprises a middle region and an end region along a length direction, wherein the end region is located at both ends of the middle region, and the height dimension of the middle region is greater than the height dimension of the end region, and the middle region is provided with a traction beam interface for connecting with a traction beam; The bolster body includes, from top to bottom, an intervally arranged bolster upper cover plate, a bolster lower cover plate, and a bolster rib plate connecting the bolster upper cover plate and the bolster lower cover plate; a bogie traction seat interface and bogie air spring interfaces located on both sides of the bogie traction seat interface are provided on the bolster lower cover plate.
[0007] In a possible implementation, the bolster modules are of three types, namely, a middle module, an end module and a transition module; There are two end modules and two transition modules, the two transition modules are respectively located on both sides of the middle module, and the two end modules are respectively located on one side of the transition module away from the middle module; The height dimension of the middle module is greater than the height dimension of the end module, the side of the transition module connected to the end module is the first side, and the side connected to the middle module is the second side, the height dimension of the first side of the transition module is the same as the height dimension of the end module, the height dimension of the second side of the transition module is the same as the height dimension of the middle module, and the traction beam interface is located on the middle module.
[0008] In a possible implementation, there are two intermediate modules, the two intermediate modules are connected, and a butt connection line between the two intermediate modules is a symmetry line; The two middle modules, the two transition modules and the two end modules are all symmetrically arranged along the symmetry line.
[0009] In a possible implementation, the end module includes an end upper cover plate, an end lower cover plate, and an end rib plate disposed between the end upper cover plate and the end lower cover plate; The transition module includes a transition upper cover plate, a transition lower cover plate, and a transition rib plate disposed between the transition upper cover plate and the transition lower cover plate; The middle module comprises a middle upper cover plate, a middle lower cover plate and a middle rib plate arranged between the middle upper cover plate and the middle lower cover plate; The end upper cover plate, the transition upper cover plate and the middle upper cover plate are located on the same plane and are welded in sequence to obtain the bolster upper cover plate; The end lower cover plate, the transition lower cover plate and the middle lower cover plate are welded in sequence to obtain the bolster lower cover plate, and the distance between the middle upper cover plate and the middle lower cover plate is greater than the distance between the end upper cover plate and the end lower cover plate.
[0010] In a possible implementation, the width of one end of the end lower cover plate away from the transition lower cover plate is greater than the width of the other end, and the width of the middle lower cover plate is greater than the width of one end of the transition lower cover plate connected to the end lower cover plate; The transition positions of different widths of the end lower cover plate, the transition lower cover plate and the middle lower cover plate are transitioned through arc transition parts.
[0011] In a possible implementation, the bolster module is an extruded aluminum profile.
[0012] The bolster provided in the present application is obtained by welding a plurality of bolster modules, and the bolster no longer adopts the traditional equal-section aluminum profile structure. The height dimension of the middle area of the bolster is greater than the height dimension of the end area, and the middle area has a traction beam interface for connecting with the traction beam, that is, the cross section of one end of the traction beam is equal to the height of the middle area of the bolster, so that the traction beam can be designed with a corresponding height according to the requirements of its own bearing capacity, and the height of the traction beam interface where the bolster and the traction beam are connected is equal to the cross-sectional height of the traction beam, ensuring that the two can be reliably welded, and other positions of the bolster do not need to increase the height with the traction beam, thereby reducing the weight of the bolster. In addition, there are bogie air spring interfaces at the two ends of the bolster. Since the height of the two ends of the bolster will not increase with the increase of the height of the traction beam, it will not occupy the space of the air spring on the bogie, and there is no need to redesign the bogie, thereby reducing the design cost.
[0013] A second aspect of the present application provides a corbel floor structure, comprising: A bolster, which is a bolster as described in any one of the above items; A traction beam, one end of which is welded to the traction beam interface; The floor is welded to both sides of the bolster along the width direction, and the floor located on the same side of the bolster as the traction beam is also welded to the traction beam.
[0014] In a possible implementation, the bolster body further includes a bolster middle plate located between the bolster upper cover plate and the bolster lower cover plate, and the bolster upper cover plate has bolster step butt joint surfaces on both sides along the width direction; The floor comprises a floor upper cover plate and a floor lower cover plate, wherein the floor upper cover plate cooperates with the lower step surface of the step abutting surface of the bolster, so that the floor upper cover plate is coplanar with the upper surface of the bolster upper cover plate; The floor undercover is supported and welded to the bolster middle plate, and the floor upper cover is welded to the bolster upper cover.
[0015] The bolster floor structure provided in the present application has all the technical effects of the above-mentioned bolsters due to the bolsters mentioned above, which will not be described in detail herein.
[0016] A third aspect of the present application provides a method for processing a bolster, which is used to process the bolster as described in any one of the above items, comprising: Module welding step, connecting and welding the various bolster modules to obtain the bolster matrix; A base cutting step, cutting the bolster base into a plurality of bolster bodies according to the width of the bolster; The body machining step is to machine the bolster body according to the design structure of the bolster to obtain a bolster with a corresponding design structure.
[0017] The bolster processing method provided in the present application has all the technical effects of the above-mentioned bolsters because it processes the above-mentioned bolsters, and will not be described in detail in this article.
[0018] A fourth aspect of the present application provides a method for processing a bolster floor structure, which is used to process the bolster floor structure as described above, comprising: Module welding step, connecting and welding the various bolster modules to obtain the bolster matrix; A base cutting step, cutting the bolster base into a plurality of bolster bodies according to the width of the bolster; a body machining step, in which the bolster body is machined according to the design structure of the bolster to obtain a bolster of a corresponding design structure, so that both sides of the bolster upper cover plate along the width direction have bolster step butt joint surfaces; The floor welding steps are as follows: supporting the floor cover plate on the middle plate of the bolster, overlapping the floor cover plate on the lower step surface of the bolster step joint surface, and welding the joints between the floor cover plate and the bolster step joint surface, as well as the overlaps between the floor cover plate and the middle plate of the bolster.
[0019] The method for processing the bolster floor structure provided in the present application has all the technical effects of the above-mentioned bolster floor structure because it processes the above-mentioned bolster floor structure, and will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] 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.
[0021] Figure 1 An exploded view of each bolster module disclosed in the embodiments of the present application; Figure 2 This is a schematic diagram of the structure of each bolster module after welding disclosed in the embodiment of the present application; Figure 3 It is a front view of the bolster body disclosed in the embodiment of the present application; Figure 4 This is a schematic diagram of the structure of the bolster body disclosed in the embodiment of the present application being placed in reverse; Figure 5 This is a schematic diagram of the structure of the bolster disclosed in the embodiment of the present application at a certain angle; Figure 6 This is a schematic diagram of the structure of the bolster disclosed in the embodiment of the present application at another angle; Figure 7 This is a schematic diagram of the structure of the reverse placement of the bolsters disclosed in the embodiment of the present application; Figure 8 This is a schematic diagram of the structure of a lower angle bolster and a traction beam after welding disclosed in an embodiment of the present application; Fig. 9 This is a schematic diagram of the structure of the lower bolster beam and the traction beam after welding at another angle disclosed in an embodiment of the present application; Fig.10 This is a schematic diagram of the structure of a lower bolster and a floor after being welded at an angle disclosed in an embodiment of the present application; Fig.11 This is a schematic diagram of the structure after the lower bolster and the floor are welded at another angle disclosed in an embodiment of the present application.
[0022] The meanings of the reference numerals in the figures are as follows: 100-corbel; 101- upper cover plate of bolster; 1011- upper cover plate of end; 1012- upper cover plate of transition; 1013- upper cover plate of middle; 102- lower cover plate of bolster; 1021- lower cover plate of end; 1022- lower cover plate of transition; 1023- lower cover plate of middle; 1024- interface of bogie traction seat; 1025- interface of bogie air spring; 103- middle plate of bolster; 1031- middle plate of end; 1032- middle plate of transition; 1033- middle plate of middle; 104- rib plate of bolster; 1041- rib plate of end; 1042- rib plate of transition; 1043- middle plate of middle; 105- interface of traction beam; 106- arc transition part; 107- step butt joint surface of bolster; 110-end module; 120-transition module; 130-middle module; 200-traction beam; 201-traction beam upper cover plate; 202-traction beam lower cover plate; 203-traction beam vertical plate; 300-floor; 301- floor cover; 302- floor cover. DETAILED DESCRIPTION
[0023] The core of the present application is to provide a bolster beam, so as to reduce the weight of the bolster beam while meeting the bearing capacity, and at the same time ensure the docking of the traction beam and the bolster beam; Another core of the present application is to provide a bolster floor structure having the above-mentioned bolster, and a processing method of the bolster and the bolster floor structure.
[0024] 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.
[0025] like Figure 3-Figure 8 As shown, the bolster disclosed in the embodiment of the present application includes a plurality of bolster modules, each of which is welded to form a bolster body, and the bolster body includes a middle region and an end region along the length direction. The end regions are located at both ends of the middle region, and the height dimension of the middle region is greater than the height dimension of the end region. It should be noted that the height dimension refers to the dimension in the vertical direction after the bolster is installed on the chassis.
[0026] The middle area is provided with a traction beam interface 105 for connecting with the traction beam 200, and the section at one end of the traction beam 200 can be welded to the traction beam interface 105. The height dimension at the traction beam interface 105 can be designed according to the height dimension of the traction beam 200, so that the section of the traction beam 200 can be matched with the traction beam interface 105 for welding.
[0027] The bolster body includes, from top to bottom, an intervally arranged bolster upper cover plate 101, a bolster lower cover plate 102, and a bolster rib plate 104 connecting the bolster upper cover plate 101 and the bolster lower cover plate 102. The traction beam 200 can be welded to the bolster upper cover plate 101, the bolster lower cover plate 102, and the bolster rib plate 104 at the traction beam interface 105, so that the traction beam 200 and the traction beam interface 105 have a larger welding area, thereby improving the connection strength between the traction beam 200 and the bolster.
[0028] If the height dimension of the end area of the bolster body is designed to be the same as the height dimension of the middle area of the bolster body, and the upper surface position of the bolster body cannot be raised, so its lower surface needs to be lowered downward, and then the bogie air spring interface 1025 located on the lower surface extends downward, which will occupy the space of the bogie, and the bogie needs to be restructured to complete the layout. In this embodiment, the bogie lower cover plate 102 is provided with a bogie traction seat interface 1024 and a bogie air spring interface 1025 located on both sides of the bogie traction seat interface 1024. The bogie air spring interface 1025 is located in the end area of the bolster body. Since the height dimension of the end area of the bolster body is smaller than the height dimension of the middle area, the height dimension of the end area does not need to be increased accordingly with the height dimension of the traction beam 200. Such a configuration does not affect the structure of the bogie, and the bogie does not need to be restructured, thereby reducing the design cost.
[0029] The bolster 100 disclosed in the embodiment of the present application is obtained by welding a plurality of bolster modules. In addition, the bolster 100 no longer adopts the traditional uniform cross-section aluminum profile structure. The height dimension of the middle area of the bolster is greater than the height dimension of the end area. The middle area has a traction beam interface 105 for connecting with the traction beam, that is, the cross section of one end of the traction beam 200 is equal to the height of the middle area of the bolster, so that the traction beam 200 can be designed with a corresponding height according to the requirements of its own bearing capacity, and the height of the traction beam interface 105 where the bolster 100 and the traction beam 200 are connected is equal to the cross-sectional height of the traction beam 200, ensuring that the two can be reliably welded, and other positions of the bolster 100 do not need to increase the height following the traction beam 200, thereby reducing the weight of the bolster 100.
[0030] In addition, bogie air spring interfaces 1025 are provided at both ends of the bolster 100. Since the height of both ends of the bolster 100 does not increase with the increase in the height of the traction beam 200, the space of the air spring on the bogie will not be occupied, and there is no need to redesign the bogie, thereby reducing the design cost.
[0031] like Figure 1 and Figure 2 As shown, in a specific embodiment of the present application, the bolster modules are divided into three types according to different structures, namely, a middle module 130, an end module 110 and a transition module 120.
[0032] There are two end modules 110 and transition modules 120. The two transition modules 120 are located on both sides of the middle module 130, and the two end modules 110 are located on the side of the transition module 120 away from the middle module 130. There can be two middle modules 130, or only one, depending on the bulk density of the aluminum alloy extruded profile. When the bulk density of the aluminum profile of the middle module of the bolster allows, one middle module is set to reduce the weld. Only one middle bolster module is set to reduce the weld, but it will cause the aluminum profile section of the middle bolster module to be too large, and the length of the extruded middle bolster module to be too small. If the length of the bolster base is too small, multiple bolster bodies cannot be processed at the same time. The length of the middle module 130, the end module 110 and the transition module 120 should be designed according to the length of the bolster. The length of the middle module 130 matches the width of the traction beam and the length of the bogie traction seat, and the length of the end module 110 matches the diameter of the bogie air spring.
[0033] It should be noted that the length of the bolster modules such as the middle module 130, the end module 110 and the transition module 120 refers to the distance between the two sides of the bolster module for welding with other bolster modules, and the sum of the lengths of the various bolster modules can be understood as the length of the bolster. The width direction of the bolster refers to the length direction of the vehicle, and the length direction of the bolster refers to the width direction of the vehicle.
[0034] The middle module 130 is located in the middle area of the bolster body, the end module 110 is located in the end area of the bolster body, and the transition module 120 is located in the transition area between the end area and the middle area of the bolster body.
[0035] The height dimension of the middle module 130 is greater than the height dimension of the end module 110. The side of the transition module 120 connected to the end module 110 is the first side, and the side connected to the middle module 130 is the second side. The height dimension of the first side of the transition module 120 is the same as the height dimension of the end module 110, and the height dimension of the second side of the transition module 120 is the same as the height dimension of the middle module 130. The transition module 120 is used to achieve the transition of the height difference between the end module 110 and the middle module 130, and the traction beam interface 105 is located on the middle module 130. It should be noted that the bolster upper cover plate 101 of the bolster body is coplanar, so the transition module 120 needs to achieve the transition from the lower cover plate of the end module 110 to the lower cover plate of the middle module 130 by changing the height of the lower cover plate.
[0036] In a specific embodiment of the present application, there are two intermediate modules 130, the two intermediate modules 130 are connected, and the connection line of the two intermediate modules 130 is defined as the symmetry line. The two intermediate modules 130, the two transition modules 120 and the two end modules 110 are all arranged symmetrically along the symmetry line.
[0037] The bolster module can be an extruded aluminum profile. In this embodiment, a fish-belly-shaped bolster (i.e., the height of the middle region of the bolster is greater than that of other positions) is formed by friction stir welding 6 extruded aluminum profiles in 3 types along the vehicle length direction. The height of the fish-belly part of the bolster is large, which can increase the section height of the drawbar 200 at the drawbar interface 105 at the fish-belly part of the bolster, thereby increasing the strength of the drawbar 200. The bolster modules are welded by friction stir welding, with a total of 5 weld seams (see Figure 2 ), and then the final structure of the bolster is formed by machining.
[0038] In addition, the dimension of the bolster module along the vehicle length direction can be greater than the width of the bolster. After welding the respective bolster modules, a bolster base can be obtained. By means of transverse cutting, a plurality of bolster bodies can be obtained, and then the bolster bodies are machined to obtain the bolster with the corresponding structure, significantly improving the production efficiency. For example, if the dimension of the bolster module along the vehicle length direction is 5 times the width of the bolster (the width dimension of the bolster is also the dimension of the bolster along the vehicle length direction), then after welding the respective bolster modules, 1 bolster base can be obtained, and 5 bolster bodies can be obtained by means of transverse cutting, and then the 5 bolster bodies are machined to obtain the bolster with the corresponding structure.
[0039] As Figure 3 shown, the end module 110 includes an end upper cover plate 1011, an end lower cover plate 1021, and end stiffening plates 1041 disposed between the end upper cover plate 1011 and the end lower cover plate 1021. The transition module 120 includes a transition upper cover plate 1012, a transition lower cover plate 1022, and transition stiffening plates 1042 disposed between the transition upper cover plate 1012 and the transition lower cover plate 1022. The intermediate module 130 includes an intermediate upper cover plate 1013, an intermediate lower cover plate 1023, and intermediate stiffening plates 1043 disposed between the intermediate upper cover plate 1013 and the intermediate lower cover plate 1023.
[0040] The end upper cover plate 1011, the transition upper cover plate 1012, and the intermediate upper cover plate 1013 are located on the same plane and are welded in sequence to obtain the bolster upper cover plate 101. The end lower cover plate 1021, the transition lower cover plate 1022, and the intermediate lower cover plate 1023 are welded in sequence to obtain the bolster lower cover plate 102. The distance between the intermediate upper cover plate 1013 and the intermediate lower cover plate 1023 (i.e., the height of the intermediate module 130) is greater than the distance between the end upper cover plate 1011 and the end lower cover plate 1021 (i.e., the height of the end module 110).
[0041] The end ribs 1041, the transition ribs 1042 and the middle ribs 1043 constitute the bolster ribs 104. The rib types of the end ribs 1041, the transition ribs 1042 and the middle ribs 1043 are not limited, for example, they may include inclined ribs and / or vertical ribs, and of course, they may also include other types of ribs, such as curved ribs, wavy ribs, etc. The angles between the inclined ribs and the bolster upper cover plate 101 and the bolster lower cover plate 102 are acute angles, and the angles between the vertical ribs and the bolster upper cover plate 101 and the bolster lower cover plate 102 are right angles.
[0042] like Figure 3-Figure 7 As shown, in a specific embodiment of the present application, the width of one end of the end lower cover plate 1021 away from the transition lower cover plate 1022 is greater than the width of the other end. Since the end lower cover plate 1021 needs to be welded to the side beam of the chassis, the width of the end lower cover plate 1021 away from the transition lower cover plate 1022 is designed to be larger, which can increase the welding area with the side beam and improve the connection strength. Since there is no requirement for connecting with the side beam at other positions of the end lower cover plate 1021, there is no need to increase the width accordingly.
[0043] In addition, the traction beam interface 105 is arranged on the middle module 130, so the width of the middle module 130 is wider than the end ribs 1041 and the transition ribs 1042, so the width of the middle lower cover 1023 is greater than the width of the end where the transition lower cover 1022 is connected to the end lower cover 1021. It should be noted that the traction beam is usually composed of symmetrical left and right traction beam modules, so the traction beam interface 105 should be two parallel arranged.
[0044] Since the widths of the lower cover plate 102 of the bolster are different at different positions, stress concentration is likely to occur at the width change point. In this embodiment, the transition positions of different widths of the end lower cover plate 1021, the transition lower cover plate 1022 and the middle lower cover plate 1023 are transitioned through the arc transition portion 106, which can effectively improve the fatigue stress condition of the bolster 100.
[0045] like Figure 8-Figure 11 As shown, the embodiment of the present application further discloses a bolster floor structure, which includes a bolster 100, a traction beam 200 and a floor 300. The bolster 100 is the bolster 100 disclosed in the above embodiment. Since the bolster 100 is provided, all the technical effects of the bolster 100 are obtained, which will not be described in detail herein.
[0046] One end of the traction beam 200 is welded to the traction beam interface 105, the floor 300 is welded to both sides of the bolster 100 in the width direction (i.e., both sides in the vehicle length direction), and the floor 300 located on the same side of the bolster 100 as the traction beam 200 is also welded to the traction beam 200. The traction beam 200 has a traction beam upper cover plate 201, a traction beam lower cover plate 202, and a traction beam vertical plate 203 connected between the traction beam upper cover plate 201 and the traction beam lower cover plate 202. The traction beam upper cover plate 201 can be butt-welded to the bolster upper cover plate 101 at the traction beam interface 105, the traction beam lower cover plate 202 can be butt-welded to the bolster lower cover plate 102 at the traction beam interface 105, and the traction beam vertical plate 203 can be butt-welded to the bolster rib plate 104 at the traction beam interface 105.
[0047] Furthermore, the bolster body further includes a bolster middle plate 103 located between the bolster upper cover plate 101 and the bolster lower cover plate 102, and the bolster upper cover plate 101 has bolster step butt joint surfaces 107 on both sides along the width direction. Specifically, the bolster step butt joint surfaces 107 can be formed by removing part of the material on the upper surface along the thickness direction of the edge of the bolster upper cover plate 101, that is, the thickness of the two side edges of the bolster upper cover plate 101 along the width direction is thinner. The thickness of the bolster step butt joint surfaces 107 after removing part of the material is equal to the thickness of the floor upper cover plate 301.
[0048] It should be noted that the end module 110 has an end middle plate 1031, the transition module 120 has a transition middle plate 1032, and the middle module 130 has a middle middle plate 1033. The end middle plate 1031, the transition middle plate 1032, and the middle middle plate 1033 together constitute the bolster middle plate 103. It should be noted that the end middle plate 1031, the transition middle plate 1032, and the middle middle plate 1033 do not need to be connected, and there may be gaps between them. The gaps between the end middle plate 1031, the transition middle plate 1032, and the middle middle plate 1033 do not affect the support of the floor 300.
[0049] The floor 300 includes a floor upper cover plate 301 and a floor lower cover plate 302. In order to improve the strength of the floor 300, a floor rib plate is further provided between the floor upper cover plate 301 and the floor lower cover plate 302. The floor upper cover plate 301 cooperates with the lower step surface of the bolster step joint surface 107, that is, the lower surface of the floor upper cover plate 301 is attached to the lower step surface of the bolster step joint surface 107, so that the upper surface of the floor upper cover plate 301 is coplanar with the upper surface of the bolster upper cover plate 101. The floor 300 can also be made of aluminum alloy.
[0050] After the floor upper cover plate 301 is butted against the bolster step butt joint surface 107, the bolster upper cover plate 101 can provide support for the floor upper cover plate 301, and the bolster middle plate 103 can provide support for the floor lower cover plate 302. In addition, since the bolster step butt joint surface 107 is provided on the bolster upper cover plate 101, the step height of the bolster step butt joint surface 107 is equal to the thickness of the floor upper cover plate 301, which can ensure that the upper surface of the bolster upper cover plate 101 and the upper surface of the floor upper cover plate 301 are on the same plane.
[0051] The floor underlay plate 302 is supported and welded on the bolster middle plate 103, and the floor upper plate 301 is welded to the bolster upper plate 101, so that the floor 300 and the bolster 100 are integrated. It should be noted that a traction beam middle plate can be provided on the traction beam vertical plate 203, the floor underlay plates 302 of the floor 300 on both sides of the traction beam 200 are supported and welded on the traction beam middle plate, and the floor upper plate 301 is butt-welded to the traction beam upper plate 201.
[0052] The bolster processing method disclosed in the embodiment of the present application is used to process the bolster 100 disclosed in the above embodiment, including a module welding step, a matrix cutting step and a body machining step.
[0053] Among them, the module welding step is: docking and welding each bolster module to obtain a bolster base, the size of the bolster base along the length direction of the vehicle body is larger than the width of the bolster, that is, larger than the size of the bolster along the length direction of the vehicle body, so that multiple bolster bodies can be obtained by one welding.
[0054] Base cutting step: according to the width of the bolster, cut the bolster base transversely into multiple bolster bodies. It should be noted that the width of the bolster body should be greater than the width of the final bolster, because the bolster body still requires subsequent machining process, which will result in the consumption of some materials and require processing allowance for the bolster.
[0055] Main body machining steps: according to the design structure of the bolster, the bolster body is machined to obtain a bolster with a corresponding design structure.
[0056] The method for processing the bolster floor structure disclosed in the embodiment of the present application is used to process the bolster floor structure disclosed in the above embodiment, including a module welding step, a substrate cutting step, a body machining step and a floor welding step.
[0057] The module welding step includes: docking and welding the various bolster modules to obtain a bolster base, the size of which along the length direction of the vehicle body is larger than the width of the bolster, that is, larger than the size of the bolster along the length direction of the vehicle body, so that multiple bolster bodies can be obtained by one welding.
[0058] Base cutting step: according to the width of the bolster, cut the bolster base transversely into multiple bolster bodies. It should be noted that the width of the bolster body should be greater than the width of the final bolster, because the bolster body still requires subsequent machining process, which will result in the consumption of some materials and require processing allowance for the bolster.
[0059] Body machining step: according to the design structure of the bolster, the bolster body is machined to obtain a bolster of corresponding design structure, so that the bolster upper cover plate 101 has bolster step docking surfaces 107 on both sides along the width direction.
[0060] Floor welding steps: support the floor cover plate on the middle plate of the bolster, overlap the floor cover plate on the lower step surface of the bolster step joint surface, and weld the joints between the floor cover plate and the bolster step joint surface, as well as the overlaps between the floor cover plate and the middle plate of the bolster.
[0061] 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.
[0062] 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.
[0063] 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.
[0064] 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 bolster, characterized in that: The bolster comprises a plurality of bolster modules, each of the bolster modules being welded together to form a bolster body, the bolster body comprising a middle region and end regions along the length direction, the end regions being located at both ends of the middle region, and the height dimension of the middle region being greater than the height dimension of the end regions, and the middle region being provided with a traction beam interface (105) for connecting to a traction beam (200); The bolster body comprises, from top to bottom, an upper bolster cover plate (101) and a lower bolster cover plate (102) arranged at intervals, and a bolster rib plate (104) connecting the upper bolster cover plate (101) and the lower bolster cover plate (102); a bogie traction seat interface (1024) and bogie air spring interfaces (1025) located on both sides of the bogie traction seat interface (1024) are provided on the lower bolster cover plate (102).
2. The bolster according to claim 1, characterized in that: There are three types of bolster modules, namely a middle module (130), an end module (110) and a transition module (120); There are two end modules (110) and two transition modules (120), the two transition modules (120) are respectively located on both sides of the middle module (130), and the two end modules (110) are respectively located on a side of the transition module (120) away from the middle module (130); The height dimension of the intermediate module (130) is greater than the height dimension of the end module (110); the side of the transition module (120) connected to the end module (110) is the first side, and the side connected to the intermediate module (130) is the second side; the height dimension of the first side of the transition module (120) is the same as the height dimension of the end module (110); the height dimension of the second side of the transition module (120) is the same as the height dimension of the intermediate module (130); and the traction beam interface (105) is located on the intermediate module (130).
3. The bolster according to claim 2, characterized in that: There are two intermediate modules (130), the two intermediate modules (130) are connected, and a butt connection line between the two intermediate modules (130) is a symmetry line; The two intermediate modules (130), the two transition modules (120) and the two end modules (110) are all symmetrically arranged along the symmetry line.
4. The bolster according to claim 2, characterized in that: The end module (110) comprises an end upper cover plate (1011), an end lower cover plate (1021), and an end rib plate (1041) arranged between the end upper cover plate (1011) and the end lower cover plate (1021); The transition module (120) comprises a transition upper cover plate (1012), a transition lower cover plate (1022), and a transition rib plate (1042) arranged between the transition upper cover plate (1012) and the transition lower cover plate (1022); The middle module (130) comprises a middle upper cover plate (1013), a middle lower cover plate (1023), and a middle rib plate (1043) arranged between the middle upper cover plate (1013) and the middle lower cover plate (1023); The end upper cover plate (1011), the transition upper cover plate (1012) and the middle upper cover plate (1013) are located on the same plane and are welded in sequence to obtain the bolster upper cover plate (101); The end lower cover plate (1021), the transition lower cover plate (1022) and the middle lower cover plate (1023) are welded in sequence to obtain the bolster lower cover plate (102), and the distance between the middle upper cover plate (1013) and the middle lower cover plate (1023) is greater than the distance between the end upper cover plate (1011) and the end lower cover plate (1021).
5. The bolster according to claim 4, characterized in that: The width of one end of the end lower cover plate (1021) away from the transition lower cover plate (1022) is greater than the width of the other end, and the width of the middle lower cover plate (1023) is greater than the width of one end of the transition lower cover plate (1022) connected to the end lower cover plate (1021); Transition positions of different widths of the end lower cover plate (1021), the transition lower cover plate (1022), and the middle lower cover plate (1023) are transitioned through an arc transition portion (106).
6. The bolster according to any one of claims 1 to 5, characterized in that: The bolster module is an extruded aluminum profile.
7. A corbel floor structure, characterized in that: include: A bolster (100), which is the bolster (100) according to any one of claims 1 to 6; A traction beam (200), one end of the traction beam (200) being welded to the traction beam interface (105); A floor panel (300) is welded to both sides of the bolster (100) in the width direction, and the floor panel (300) located on the same side of the bolster (100) as the traction beam (200) is also welded to the traction beam (200).
8. The corbel floor structure according to claim 7, characterized in that: The bolster body further comprises a bolster middle plate (103) located between the bolster upper cover plate (101) and the bolster lower cover plate (102), and the bolster upper cover plate (101) has bolster step butt joint surfaces (107) on both sides along the width direction; The floor (300) comprises an upper floor cover plate (301) and a lower floor cover plate (302), wherein the upper floor cover plate (301) cooperates with the lower step surface of the bolster step joint surface (107) so that the upper surface of the upper floor cover plate (301) and the upper surface of the bolster upper cover plate (101) are coplanar; The floor lower cover plate (302) is supported and welded to the bolster middle plate (103), and the floor upper cover plate (301) and the bolster upper cover plate (101) are welded.
9. A method for processing a bolster, characterized in that: Used for processing the bolster (100) according to any one of claims 1 to 6, comprising: Module welding step, connecting and welding the various bolster modules to obtain the bolster matrix; A base cutting step, cutting the bolster base into a plurality of bolster bodies according to the width of the bolster; The body machining step is to machine the bolster body according to the design structure of the bolster to obtain a bolster with a corresponding design structure.
10. A method for processing a corbel floor structure, characterized in that: Used for processing the corbel floor structure as claimed in claim 8, comprising: Module welding step, connecting and welding the various bolster modules to obtain the bolster matrix; A base cutting step, cutting the bolster base into a plurality of bolster bodies according to the width of the bolster; a body machining step, in which the bolster body is machined according to the design structure of the bolster to obtain a bolster with a corresponding design structure, so that the bolster upper cover plate (101) has bolster step butt joint surfaces (107) on both sides along the width direction; The floor welding step includes supporting the floor undercover (302) on the bolster middle plate (103), overlapping the floor upper cover (301) on the lower step surface of the bolster step joint surface (107), and welding the joint between the floor upper cover (301) and the bolster step joint surface (107), as well as the overlap between the floor undercover (302) and the bolster middle plate (103).