Frame manufacturing method

Abstract

The invention belongs to the technical field of vehicle frames, and discloses a vehicle frame manufacturing method, in the vehicle frame manufacturing method, a long main longitudinal beam is split into three sections to be machined, so that the length of each section is short, and the machining difficulty is low; connecting one of the first longitudinal beam sections with one of the third longitudinal beam sections through a first middle piece to form a first end part; connecting the other first longitudinal beam section with the other third longitudinal beam section through a second middle piece to form a second end part; then, a first longitudinal beam section, a second longitudinal beam section and a third longitudinal beam section of the main longitudinal beam are sequentially connected to form a long main longitudinal beam, in the step, the second longitudinal beam section and the first longitudinal beam section as well as the second longitudinal beam section and the third longitudinal beam section can be connected in a welding mode and the like, and when the three sections of the main longitudinal beam are machined, the first longitudinal beam section, the second longitudinal beam section and the third longitudinal beam section can be connected in a welding mode and the like. And the requirement on the machining precision is not too high.

Description

Technical Field

[0001] This invention relates to the field of vehicle frame technology, and more particularly to a method for manufacturing a vehicle frame. Background Technology

[0002] The locomotive frame is a crucial load-bearing component of the locomotive body. It must not only bear the weight of the car body and its internal equipment but also withstand the traction and braking forces transmitted from the bogies. Due to the long length of the locomotive body, the longitudinal beams of the corresponding locomotive frame can reach over 20 meters in length, resulting in a continuous beam locomotive frame. However, the longitudinal beams of this type of locomotive frame are difficult to manufacture, prone to twisting and deformation after welding, requiring extensive flame straightening, which is time-consuming, labor-intensive, and detrimental to frame assembly.

[0003] In response, related technologies offer a solution for processing and assembling locomotive frames in sections. This method involves manufacturing the locomotive frame in three parts during the design phase and then connecting these three parts sequentially to complete the assembly. However, this approach requires comprehensive consideration of various factors from the initial design stage, demands high processing precision, and is not suitable for manufacturing full-length beam locomotive frames. Summary of the Invention

[0004] This invention provides a chassis manufacturing method to address the problem that related technologies have high requirements for machining accuracy and are not suitable for manufacturing full-length beam locomotive chassis.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A method for manufacturing a vehicle frame, the vehicle frame comprising two main longitudinal beams, the main longitudinal beams comprising a first longitudinal beam segment, a second longitudinal beam segment, and a third longitudinal beam segment;

[0007] The method for manufacturing the vehicle frame includes:

[0008] S100: Process two first longitudinal beam segments, two second longitudinal beam segments, and two third longitudinal beam segments respectively;

[0009] S200: Connect one of the first longitudinal beam segments to one of the third longitudinal beam segments via a first intermediate member to form a first end; connect another first longitudinal beam segment to another third longitudinal beam segment via a second intermediate member to form a second end; in the first end, the first longitudinal beam segment and the third longitudinal beam segment are parallel and spaced apart; in the second end, the first longitudinal beam segment and the third longitudinal beam segment are parallel and spaced apart.

[0010] S300: Connect one end of one of the second longitudinal beam segments to the first longitudinal beam segment at the first end, and connect the other end to the third longitudinal beam segment at the second end; connect one end of another second longitudinal beam segment to the third longitudinal beam segment at the first end, and connect the other end to the first longitudinal beam segment at the second end.

[0011] As a preferred embodiment of the frame manufacturing method, in the first end formed in step S200, both the first longitudinal beam segment and the third longitudinal beam segment extend in a direction close to the second end, and the extension lengths are different; and / or,

[0012] In the second end formed in step S200, both the first longitudinal beam segment and the third longitudinal beam segment extend in a direction close to the first end, and the extension lengths are different.

[0013] As a preferred embodiment of the frame manufacturing method, the frame further includes a first connecting block; in step S300, a portion of the first connecting block is segmentally attached to the first longitudinal beam and fixedly connected to the first longitudinal beam segmentally, and another portion of the first connecting block is segmentally attached to the second longitudinal beam and fixedly connected to the second longitudinal beam segmentally; and / or,

[0014] The frame also includes a second connecting block; in step S300, a portion of the second connecting block is attached to the third longitudinal beam in sections and fixedly connected to the third longitudinal beam in sections, and another portion of the second connecting block is attached to the second longitudinal beam in sections and fixedly connected to the second longitudinal beam in sections.

[0015] As a preferred embodiment of the chassis manufacturing method, the method also includes steps between S200 and S300:

[0016] S210: Install a first end traction beam assembly at the first end and a second end traction beam assembly at the second end.

[0017] As a preferred embodiment of the chassis manufacturing method, the method also includes steps between S200 and S300:

[0018] S220: Install a first side bearing beam assembly at the first end and a second side bearing beam assembly at the second end.

[0019] As a preferred embodiment of the chassis manufacturing method, the method also includes steps between S200 and S300:

[0020] S230: A first cover plate assembly is installed between the first longitudinal beam segment and the third longitudinal beam segment at the first end, and a second cover plate assembly is installed between the first longitudinal beam segment and the third longitudinal beam segment at the second end.

[0021] As a preferred embodiment of the chassis manufacturing method, the chassis further includes a transformer beam assembly section;

[0022] The chassis manufacturing method further includes steps S200-S300:

[0023] S240: Hoist the transformer beam assembly to the predetermined installation position located between the first end and the second end;

[0024] Step S300 further includes: simultaneously connecting the transformer beam assembly to the two second longitudinal beams in segments.

[0025] As a preferred embodiment of the frame manufacturing method, the frame further includes two intermediate beams, each intermediate beam comprising a first intermediate beam segment and a second intermediate beam segment;

[0026] The chassis manufacturing method also includes steps prior to S200:

[0027] S110: Process the two first intermediate beam segments and the two second intermediate beam segments respectively;

[0028] In step S200, the first intermediate component is one of the first intermediate beam segments, and in the first end, the first longitudinal beam segment, the first intermediate beam segment, and the third longitudinal beam segment are arranged parallel and spaced apart; the second intermediate component is another first intermediate beam segment, and in the second end, the first longitudinal beam segment, the first intermediate beam segment, and the third longitudinal beam segment are arranged parallel and spaced apart.

[0029] The chassis manufacturing method further includes steps S240-S300:

[0030] S250: Connect one end of one of the second intermediate beam segments to one of the first intermediate beam segments, and connect the other end to the transformer beam assembly; connect one end of another second intermediate beam segment to another first intermediate beam segment, and connect the other end to the transformer beam assembly.

[0031] As a preferred embodiment of the chassis manufacturing method, step S200, the method for connecting the first longitudinal beam segment to the third longitudinal beam segment includes:

[0032] Multiple crossbeams are placed between the first longitudinal beam segment and the third longitudinal beam segment, and the multiple crossbeams are arranged at intervals along the extension direction of the first longitudinal beam segment. Then, the first longitudinal beam segment is connected to one end of the multiple crossbeams at the same time, and the third longitudinal beam segment is connected to the other end of the multiple crossbeams at the same time.

[0033] As a preferred embodiment of the chassis manufacturing method, step S200 further includes: placing a connecting beam and simultaneously connecting the connecting beam to multiple crossbeams.

[0034] The beneficial effects of this invention are:

[0035] This invention provides a method for manufacturing a vehicle frame, which includes two main longitudinal beams, each comprising a first longitudinal beam segment, a second longitudinal beam segment, and a third longitudinal beam segment. In the method, the two first longitudinal beam segments, two second longitudinal beam segments, and two third longitudinal beam segments are machined respectively. Since the relatively long main longitudinal beams are divided into three segments for machining, each segment is relatively short, reducing machining difficulty. Subsequently, one of the first longitudinal beam segments is connected to one of the third longitudinal beam segments via a first intermediate member to form a first end. The other first longitudinal beam segment is connected to the other third longitudinal beam segment via a second intermediate member to form a second end. In the first end, the first and third longitudinal beam segments are parallel and spaced apart. In the second end, the first and third longitudinal beam segments are parallel and spaced apart. One end of one of the second longitudinal beam segments is connected to the first longitudinal beam segment of the first end, and the other end is connected to the third longitudinal beam of the second end. Segmented connection: One end of another second longitudinal beam segment is connected to the third longitudinal beam segment at the first end, and the other end is connected to the first longitudinal beam segment at the second end. Thus, the first, second, and third longitudinal beam segments of the main longitudinal beam are connected sequentially to form a longer main longitudinal beam. In this step, the second longitudinal beam segment can be connected to the first longitudinal beam segment, and the second longitudinal beam segment can be connected to the third longitudinal beam segment by welding or other means. During connection, the lengths of the three segments of the main longitudinal beam can be adjusted by cutting, grinding, or other means according to the on-site assembly situation to make them compatible with each other. In addition, the three segments of the main longitudinal beam can be kept at a certain distance, and adjacent segments can be connected by an intermediate connecting block, which bears the welding filler metal. The chassis manufacturing method does not divide the chassis into multiple parts for manufacturing. Instead, it processes only the three sections of the main longitudinal beam separately. This solves the problem that the longitudinal beams of the full-length beam locomotive chassis are prone to twisting and deformation after welding. At the same time, the machining accuracy requirements are not too high when processing the three sections of the main longitudinal beam. Attached Figure Description

[0036] Figure 1 This is a flowchart of the frame manufacturing method in Embodiment 1 of the present invention;

[0037] Figure 2 This is a schematic diagram of the main longitudinal beam in Embodiment 1 of the present invention;

[0038] Figure 3 This is a schematic diagram of the structure of the first longitudinal beam segment in Embodiment 1 of the present invention;

[0039] Figure 4 This is a schematic diagram of the second longitudinal beam segment in Embodiment 1 of the present invention;

[0040] Figure 5 This is a schematic diagram of the third longitudinal beam segment in Embodiment 1 of the present invention;

[0041] Figure 6 This is a schematic diagram of the first structure at the first end in Embodiment 1 of the present invention;

[0042] Figure 7 This is a schematic diagram of the second structure at the first end in Embodiment 1 of the present invention;

[0043] Figure 8 This is a schematic diagram of the transformer beam assembly section in Embodiment 1 of the present invention;

[0044] Figure 9 This is a schematic diagram of the first structure of the vehicle frame in Embodiment 1 of the present invention;

[0045] Figure 10 yes Figure 9 Enlarged view of point A on the center frame;

[0046] Figure 11 This is an enlarged view of a partial structure of the vehicle frame in Embodiment 1 of the present invention;

[0047] Figure 12 yes Figure 9 Enlarged view of point B on the center frame;

[0048] Figure 13 This is a cross-sectional view of a partial structure of the vehicle frame in Embodiment 1 of the present invention;

[0049] Figure 14 This is a schematic diagram of the second structure of the vehicle frame in Embodiment 1 of the present invention;

[0050] Figure 15 This is a schematic diagram of the third structure of the vehicle frame in Embodiment 1 of the present invention;

[0051] Figure 16 This is a flowchart of the frame manufacturing method in Embodiment 2 of the present invention;

[0052] Figure 17 This is a schematic diagram of the main longitudinal beam in Embodiment 2 of the present invention;

[0053] Figure 18 This is a schematic diagram of the first longitudinal beam segment in Embodiment 2 of the present invention;

[0054] Figure 19 This is a schematic diagram of the second longitudinal beam segment in Embodiment 2 of the present invention;

[0055] Figure 20 This is a schematic diagram of the third longitudinal beam segment in Embodiment 2 of the present invention;

[0056] Figure 21 This is a schematic diagram of the first structure at the first end in Embodiment 2 of the present invention;

[0057] Figure 22 This is a schematic diagram of the second structure at the first end in Embodiment 2 of the present invention;

[0058] Figure 23 This is a schematic diagram of the first structure of the vehicle frame in Embodiment 2 of the present invention;

[0059] Figure 24 yes Figure 23 Enlarged view of point C on the center frame;

[0060] Figure 25 This is a schematic diagram of the second structure of the vehicle frame in Embodiment 2 of the present invention.

[0061] In the picture:

[0062] 100. Frame; 101. First end; 102. Second end;

[0063] 1. Main longitudinal beam; 11. First longitudinal beam segment; 12. Second longitudinal beam segment; 13. Third longitudinal beam segment;

[0064] 21. Main longitudinal beam connecting plate; 22. Intermediate beam connecting plate; 23. Connecting plate;

[0065] 31. First cover plate assembly; 311. Cover plate; 32. Second cover plate assembly; 33. Outer side plate; 331. Connecting side plate; 332. Outer side plate connecting plate; 34. Middle cover plate assembly;

[0066] 41. First end traction beam assembly; 42. Second end traction beam assembly;

[0067] 51. First side bearing beam assembly section; 52. Second side bearing beam assembly section;

[0068] 6. Transformer beam assembly section; 61. Traction pin hole; 62. Traction pin;

[0069] 7. Intermediate beam; 71. First intermediate beam segment; 72. Second intermediate beam segment; 73. Intermediate beam connecting crossbeam;

[0070] 8. Crossbeam; 81. Connecting beam. Detailed Implementation

[0071] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0072] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0073] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0074] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0075] Example 1

[0076] Related technologies offer a solution for processing and assembling locomotive frames in sections. This method involves manufacturing the locomotive frame in three parts during the design phase and then connecting these three parts sequentially to complete the assembly. However, this approach requires comprehensive consideration of various factors from the initial design stage, demands high processing precision, and is not suitable for manufacturing full-length beam locomotive frames.

[0077] To address this issue, this embodiment provides a chassis manufacturing method to solve the aforementioned problems. This method can be used in the field of chassis technology, specifically for locomotive chassis, and also for automobile chassis such as commercial vehicles.

[0078] The frame manufacturing method is used to process a frame 100, which includes two main longitudinal beams 1. The main longitudinal beams 1 include a first longitudinal beam segment 11, a second longitudinal beam segment 12, and a third longitudinal beam segment 13.

[0079] Reference Figure 1 The chassis manufacturing method includes the following steps.

[0080] S100: Process two first longitudinal beam segments 11, two second longitudinal beam segments 12, and two third longitudinal beam segments 13 respectively.

[0081] Since the long main longitudinal beam 1 is divided into three sections for processing, each section is relatively short and the processing difficulty is low.

[0082] In this embodiment, the frame 100 is a side-beam type frame. In this type frame, two main longitudinal beams 1 are located on both sides of the vehicle body, and the distance between the two main longitudinal beams 1 is relatively large. Furthermore, the frame 100 also includes two intermediate beams 7, each comprising a first intermediate beam segment 71 and a second intermediate beam segment 72. The intermediate beams 7 are positioned between the two main longitudinal beams 1 to increase the overall structural strength of the frame 100.

[0083] The chassis manufacturing method also includes step S110, which is located before step S200.

[0084] S110: Process the two first intermediate beam segments 71 and the two second intermediate beam segments 72 respectively.

[0085] This step also allows the longer intermediate beam 7 to be split into two sections for processing, resulting in shorter lengths for each section and lower processing difficulty.

[0086] In this embodiment, step S110 is located after step S100, while in other embodiments, step S110 may be executed synchronously with step S100.

[0087] S200: Connect one of the first longitudinal beam segments 11 and one of the third longitudinal beam segments 13 through a first intermediate member to form a first end 101; connect another first longitudinal beam segment 11 and another third longitudinal beam segment 13 through a second intermediate member to form a second end 102; in the first end 101, the first longitudinal beam segment 11 and the third longitudinal beam segment 13 are parallel and spaced apart, and in the second end 102, the first longitudinal beam segment 11 and the third longitudinal beam segment 13 are parallel and spaced apart.

[0088] In this embodiment, the first end 101 and the second end 102 have the same structure.

[0089] Optionally, in step S200, the first intermediate component is one of the first intermediate beam segments 71, and in the first end 101, the first longitudinal beam segment 11, the first intermediate beam segment 71, and the third longitudinal beam segment 13 are arranged parallel and spaced apart; the second intermediate component is another first intermediate beam segment 71, and in the second end 102, the first longitudinal beam segment 11, the first intermediate beam segment 71, and the third longitudinal beam segment 13 are arranged parallel and spaced apart. Optionally, the first intermediate beam segment 71 and the first longitudinal beam segment 11, as well as the first intermediate beam segment 71 and the third longitudinal beam segment 13, can be fixedly connected by an intermediate beam connecting beam 73.

[0090] Optionally, in the first end 101 formed in step S200, the first longitudinal beam segment 11 and the third longitudinal beam segment 13 both extend in the direction close to the second end 102, and the extension lengths are different. Thus, along the length direction of the main longitudinal beam 1, the end of the first longitudinal beam segment 11 close to the second end 102 and the end of the third longitudinal beam segment 13 close to the second end 102 are staggered. With this arrangement, after the first longitudinal beam segment 11 and the third longitudinal beam segment 13 are welded to the two second longitudinal beam segments 12 respectively, the welding positions are staggered along the length direction of the main longitudinal beam 1, so as to minimize the impact of unstable welding quality on the overall strength of the frame 100. And / or, in the second end 102 formed in step S200, both the first longitudinal beam segment 11 and the third longitudinal beam segment 13 extend along the direction close to the first end 101, and their extension lengths are different. This results in the first longitudinal beam segment 11 and the third longitudinal beam segment 13 being staggered along the length direction of the main longitudinal beam 1. With this arrangement, after the first longitudinal beam segment 11 and the third longitudinal beam segment 13 are welded to the two second longitudinal beam segments 12 respectively, the welding positions are staggered along the length direction of the main longitudinal beam 1, minimizing the impact of unstable welding quality on the overall strength of the frame 100. This embodiment exemplarily provides a scheme where the extension lengths of the first longitudinal beam segment 11 and the third longitudinal beam segment 13 in the first end 101 are different, and the extension lengths of the first longitudinal beam segment 11 and the third longitudinal beam segment 13 in the second end 102 are also different.

[0091] Optionally, the chassis manufacturing method may further include the following steps between steps S200 and S300.

[0092] S210: Install the first end traction beam assembly 41 at the first end 101 and install the second end traction beam assembly 42 at the second end 102.

[0093] The first end traction beam assembly part 41 and the second end traction beam assembly part 42 are both used to connect the traction beam, and the first end traction beam assembly part 41 and the second end traction beam assembly part 42 have the same structure.

[0094] S220: Install the first side bearing beam assembly 51 at the first end 101 and install the second side bearing beam assembly 52 at the second end 102.

[0095] The first side bearing beam assembly part 51 and the second side bearing beam assembly part 52 are both used to connect the side bearing beams, and the first side bearing beam assembly part 51 and the second side bearing beam assembly part 52 have the same structure.

[0096] S230: A first cover plate assembly 31 is installed between the first longitudinal beam segment 11 and the third longitudinal beam segment 13 at the first end 101, and a second cover plate assembly 32 is installed between the first longitudinal beam segment 11 and the third longitudinal beam segment 13 at the second end 102.

[0097] The first cover plate assembly 31 and the second cover plate assembly 32 have the same structure. Taking the first cover plate assembly 31 as an example, the first cover plate assembly 31 includes a plurality of cover plates 311 disposed between the first longitudinal beam segment 11 and the third longitudinal beam segment 13. Optionally, the first cover plate assembly 31 has an even number of cover plates 311, which are symmetrically distributed along the center line of the first intermediate beam segment 71.

[0098] S240: Hoist the transformer beam assembly 6 to the predetermined installation position located between the first end 101 and the second end 102.

[0099] In this step, a tooling for assembling the frame 100 can be pre-set, and the first end 101, the transformer beam assembly part 6 and the second end 102 are all placed in the tooling.

[0100] The transformer beam assembly part 6 is used to install the transformer beam and has a traction pin hole 61 for installing the traction pin 62.

[0101] In this embodiment, the above steps are executed sequentially in the order of S210-S220-S230-S240. In other embodiments, the execution order can be adjusted according to actual needs.

[0102] Optionally, the chassis manufacturing method further includes step S250, which is located between steps S240 and S300.

[0103] S250: Connect one end of one of the second intermediate beam segments 72 to one of the first intermediate beam segments 71, and the other end to the transformer beam assembly part 6; connect one end of another second intermediate beam segment 72 to another first intermediate beam segment 71, and the other end to the transformer beam assembly part 6.

[0104] This step allows the above-mentioned structure to be pre-connected via the two second intermediate beam segments 72 and the transformer beam assembly part 6 before the two second longitudinal beam segments 12 are installed with the first end 101 and the second end 102, thus forming the basic structure of the frame 100.

[0105] S300: Connect one end of one of the second longitudinal beam segments 12 to the first longitudinal beam segment 11 of the first end 101, and the other end to the third longitudinal beam segment 13 of the second end 102; connect one end of the other second longitudinal beam segment 12 to the third longitudinal beam segment 13 of the first end 101, and the other end to the first longitudinal beam segment 11 of the second end 102; connect the transformer beam assembly 6 to both second longitudinal beam segments 12 simultaneously.

[0106] In this step, the first longitudinal beam segment 11, the second longitudinal beam segment 12, and the third longitudinal beam segment 13 of the main longitudinal beam 1 are connected sequentially to form a relatively long main longitudinal beam 1. In this step, the second longitudinal beam segment 12 can be connected to the first longitudinal beam segment 11, and the second longitudinal beam segment 12 can be connected to the third longitudinal beam segment 13 by welding or other means. During the connection, the lengths of the three segments of the main longitudinal beam 1 can be adjusted by cutting, grinding, or other means according to the on-site assembly situation so that they can be adapted to each other.

[0107] Optionally, the frame 100 further includes a first connecting block; in step S300, a portion of the first connecting block is attached to and fixedly connected to the first longitudinal beam segment 11, and another portion of the first connecting block is attached to and fixedly connected to the second longitudinal beam segment 12, thereby enabling a stable connection between the first longitudinal beam segment 11 and the second longitudinal beam segment 12; and / or, the frame 100 further includes a second connecting block; in step S300, a portion of the second connecting block is attached to and fixedly connected to the third longitudinal beam segment 13, and another portion of the second connecting block is attached to and fixedly connected to the second longitudinal beam segment 12, thereby enabling a stable connection between the third longitudinal beam segment 13 and the second longitudinal beam segment 12. This embodiment exemplarily provides a scheme that simultaneously provides a first connecting block and a second connecting block.

[0108] In this embodiment, the first longitudinal beam segment 11, the second longitudinal beam segment 12, and the third longitudinal beam segment 13 are all composed of two parallel and spaced structural beams. The first connecting block and the second connecting block have the same structure, which is a U-shaped main longitudinal beam connecting plate 21. The main longitudinal beam connecting plate 21 has a main longitudinal beam connecting plate body located in the middle and two extension plates respectively disposed at both ends of the main longitudinal beam connecting plate body. The two extension plates are respectively connected to the two structural beams of the above-mentioned longitudinal beam segments. The main longitudinal beam connecting plate 21 can bear the welding filler metal.

[0109] Optionally, outer side plates 33 are provided on the outer sides of the first longitudinal beam segment 11, the second longitudinal beam segment 12, and the third longitudinal beam segment 13. The outer side plates 33 are relatively short. When the first longitudinal beam segment 11 is connected to the second longitudinal beam segment 12 or the second longitudinal beam segment 12 is connected to the third longitudinal beam segment 13, an operating space is formed between the outer side plates 33 of the two adjacent longitudinal beam segments, which facilitates the installation of structures such as the main longitudinal beam connecting plate 21. After the main longitudinal beam connecting plate 21 is installed, the connecting side plate 331 is placed in the above-mentioned operating space, and the two ends of the connecting side plate 331 are fixedly connected to the two outer side plates 33 respectively through two outer side plate connecting plates 332. Specifically, the outer side plate connecting plates 332 are welded and fixed to both the connecting side plate 331 and the outer side plate 33. The welding filler metal can be supported by the outer side plate connecting plates 332.

[0110] Optionally, the second intermediate beam segment 72 and the first intermediate beam segment 71 are connected by an intermediate beam connecting plate 22. A part of the intermediate beam connecting plate 22 is attached to the second intermediate beam segment 72 and fixedly connected to it, while the other part is attached to the first intermediate beam segment 71 and fixedly connected to it.

[0111] Optionally, after the installation of the above structure is completed, a middle cover plate assembly 34 is installed between the two second longitudinal beam segments 12. The middle cover plate assembly 34 consists of a number of middle cover plates, with an even number of middle cover plates, which are symmetrically distributed along the center line of the second intermediate beam segment 72.

[0112] In the frame manufacturing method provided in this embodiment, two first longitudinal beam segments 11, two second longitudinal beam segments 12, and two third longitudinal beam segments 13 are processed respectively. Since the long main longitudinal beam 1 is divided into three segments for processing, the length of each segment is relatively short, and the processing difficulty is low. Subsequently, one of the first longitudinal beam segments 11 is connected to one of the third longitudinal beam segments 13 to form a first end 101; another first longitudinal beam segment 11 is connected to another third longitudinal beam segment 13 to form a second end 102. In the first end 101, the first longitudinal beam segments 11 and the third longitudinal beam segments 13 are parallel and spaced apart. In the second end 102, the first longitudinal beam segments 11 and the third longitudinal beam segments 13 are parallel and spaced apart. One end of one of the second longitudinal beam segments 12 is connected to the first longitudinal beam segment 11 of the first end 101, and the other end is connected to the first longitudinal beam segment 13 of the second end 102. The three longitudinal beam segments 13 are connected; one end of another second longitudinal beam segment 12 is connected to the third longitudinal beam segment 13 of the first end 101, and the other end is connected to the first longitudinal beam segment 11 of the second end 102, thereby connecting the first longitudinal beam segment 11, the second longitudinal beam segment 12 and the third longitudinal beam segment 13 of the main longitudinal beam 1 in sequence to form a longer main longitudinal beam 1. In this step, the second longitudinal beam segment 12 and the first longitudinal beam segment 11, and the second longitudinal beam segment 12 and the third longitudinal beam segment 13 can be connected by welding or other means. When connecting, the lengths of the three segments of the main longitudinal beam 1 can be adjusted by cutting, grinding or other means according to the on-site assembly situation so that they can be adapted to each other. In addition, the three segments of the main longitudinal beam can be kept at a certain distance, and two adjacent segments can be connected by an intermediate connecting block, which carries the welding filler metal. The chassis manufacturing method does not divide the chassis 100 into multiple parts for manufacturing. Instead, it processes only the three sections of the main longitudinal beam 1 separately. This solves the problem that the longitudinal beams of the full-length beam locomotive chassis are prone to twisting and deformation after welding. At the same time, the requirements for machining accuracy are not too high when machining the three sections of the main longitudinal beam 1.

[0113] Example 2

[0114] This embodiment provides another frame manufacturing method, in which the type of frame 100 used for processing is different from that used in the frame manufacturing method of Embodiment 1. In Embodiment 1, the frame 100 is a side beam type frame, with two main longitudinal beams 1 located on both sides of the vehicle body, and the distance between the two main longitudinal beams 1 is relatively large. In this embodiment, the frame 100 is a center beam type frame, with the two main longitudinal beams 1 of the frame 100 located in the middle of the locomotive body, and the distance between the two main longitudinal beams 1 is relatively small. Therefore, it is unnecessary to set up structures such as the intermediate beam 7. At the same time, structures such as the first side bearing beam assembly 51, the second side bearing beam assembly 52, and the transformer beam assembly 6 are no longer installed.

[0115] Reference Figure 16 The chassis manufacturing method includes the following steps.

[0116] S100: Process two first longitudinal beam segments 11, two second longitudinal beam segments 12, and two third longitudinal beam segments 13 respectively.

[0117] S200: Connect one of the first longitudinal beam segments 11 and one of the third longitudinal beam segments 13 through a first intermediate member to form a first end 101; connect another first longitudinal beam segment 11 and another third longitudinal beam segment 13 through a second intermediate member to form a second end 102; in the first end 101, the first longitudinal beam segment 11 and the third longitudinal beam segment 13 are parallel and spaced apart, and in the second end 102, the first longitudinal beam segment 11 and the third longitudinal beam segment 13 are parallel and spaced apart.

[0118] Optionally, in step S200, the method of connecting the first longitudinal beam segment 11 and the third longitudinal beam segment 13 includes: placing a plurality of crossbeams 8 between the first longitudinal beam segment 11 and the third longitudinal beam segment 13, and arranging the plurality of crossbeams 8 at intervals along the extension direction of the first longitudinal beam segment 11; then connecting the first longitudinal beam segment 11 to one end of the plurality of crossbeams 8 simultaneously, and connecting the third longitudinal beam segment 13 to the other end of the plurality of crossbeams 8 simultaneously. That is, in this embodiment, both the first intermediate component and the second intermediate component are crossbeams 8. Since the intermediate beam 7 is no longer provided, the first longitudinal beam segment 11 and the third longitudinal beam segment 13 are connected by a plurality of crossbeams 8 to increase the stability of the connection between the first longitudinal beam segment 11 and the third longitudinal beam segment 13.

[0119] Furthermore, step S200 also includes: placing the connecting beam 81 and connecting the connecting beam 81 to multiple crossbeams 8 simultaneously, thereby increasing the structural strength of the multiple crossbeams 8 to further enhance the overall structural strength of the frame 100.

[0120] S210: A first end traction beam assembly 41 is installed at the first end 101, and a second end traction beam assembly 42 is installed at the second end 102; both the first end traction beam assembly 41 and the second end traction beam assembly 42 are used to connect the traction beam.

[0121] In this embodiment, the frame 100 is not equipped with the first side bearing beam assembly part 51 and the second side bearing beam assembly part 52 because the applicable vehicle model is different, so step S220 is omitted.

[0122] S230: A first cover plate assembly 31 is installed between the first longitudinal beam segment 11 and the third longitudinal beam segment 13 at the first end 101, and a second cover plate assembly 32 is installed between the first longitudinal beam segment 11 and the third longitudinal beam segment 13 at the second end 102.

[0123] S300: Connect one end of one of the second longitudinal beam segments 12 to the first longitudinal beam segment 11 of the first end 101, and the other end to the third longitudinal beam segment 13 of the second end 102; connect one end of the other second longitudinal beam segment 12 to the third longitudinal beam segment 13 of the first end 101, and the other end to the first longitudinal beam segment 11 of the second end 102.

[0124] Similar to Embodiment 1 above, in step S300, the first longitudinal beam segment 11 and the second longitudinal beam segment 12 are connected by a first connecting block. A portion of the first connecting block is attached to and fixedly connected to the first longitudinal beam segment 11, and the other portion is attached to and fixedly connected to the second longitudinal beam segment 12; and / or, the third longitudinal beam segment 13 and the second longitudinal beam segment 12 are connected by a second connecting block. A portion of the second connecting block is attached to and fixedly connected to the third longitudinal beam segment 13, and the other portion is attached to and fixedly connected to the second longitudinal beam segment 12.

[0125] In this embodiment, both the first connecting block and the second connecting block are connecting plates 23. The cross-sections of the first longitudinal beam segment 11, the second longitudinal beam segment 12, and the third longitudinal beam segment 13 are all square. The first longitudinal beam segment 11, the second longitudinal beam segment 12, and the third longitudinal beam segment 13 are all spliced ​​together from four plates. The first longitudinal beam segment 11 and the second longitudinal beam segment 12, as well as the second longitudinal beam segment 12 and the third longitudinal beam segment 13, are connected by connecting plates 23. The connecting plates 23 can support the welding filler metal.

[0126] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for manufacturing a vehicle frame, characterized in that, Used for processing a frame (100), the frame (100) includes two main longitudinal beams (1), the main longitudinal beams (1) include a first longitudinal beam segment (11), a second longitudinal beam segment (12) and a third longitudinal beam segment (13); The method for manufacturing the vehicle frame includes: S100: Process two first longitudinal beam segments (11), two second longitudinal beam segments (12), and two third longitudinal beam segments (13) respectively. S200: Connect one of the first longitudinal beam segments (11) and one of the third longitudinal beam segments (13) through a first intermediate member to form a first end (101); connect another first longitudinal beam segment (11) and another third longitudinal beam segment (13) through a second intermediate member to form a second end (102); in the first end (101), the first longitudinal beam segment (11) and the third longitudinal beam segment (13) are parallel and spaced apart, and in the second end (102), the first longitudinal beam segment (11) and the third longitudinal beam segment (13) are parallel and spaced apart; S300: Connect one end of one of the second longitudinal beam segments (12) to the first longitudinal beam segment (11) of the first end (101), and connect the other end to the third longitudinal beam segment (13) of the second end (102); connect one end of the other second longitudinal beam segment (12) to the third longitudinal beam segment (13) of the first end (101), and connect the other end to the first longitudinal beam segment (11) of the second end (102).

2. The vehicle frame manufacturing method according to claim 1, characterized in that, In the first end portion (101) formed in step S200, both the first longitudinal beam segment (11) and the third longitudinal beam segment (13) extend in a direction close to the second end portion (102), and their extension lengths are different; and / or, In the second end (102) formed in step S200, the first longitudinal beam segment (11) and the third longitudinal beam segment (13) both extend in a direction close to the first end (101), and the extension lengths are different.

3. The vehicle frame manufacturing method according to claim 1, characterized in that, The frame (100) further includes a first connecting block; in step S300, a portion of the first connecting block is attached to the first longitudinal beam segment (11) and fixedly connected to the first longitudinal beam segment (11), and another portion of the first connecting block is attached to the second longitudinal beam segment (12) and fixedly connected to the second longitudinal beam segment (12); and / or, The frame (100) also includes a second connecting block; in step S300, a part of the second connecting block is attached to the third longitudinal beam segment (13) and fixedly connected to the third longitudinal beam segment (13), and another part of the second connecting block is attached to the second longitudinal beam segment (12) and fixedly connected to the second longitudinal beam segment (12).

4. The vehicle frame manufacturing method according to claim 1, characterized in that, It also includes the steps between S200 and S300: S210: Install a first end traction beam assembly (41) at the first end (101) and install a second end traction beam assembly (42) at the second end (102).

5. The vehicle frame manufacturing method according to claim 1, characterized in that, It also includes the steps between S200 and S300: S220: Install a first side bearing beam assembly (51) at the first end (101) and install a second side bearing beam assembly (52) at the second end (102).

6. The method for manufacturing a vehicle frame according to claim 1, characterized in that, It also includes the steps between S200 and S300: S230: Install a first cover plate assembly (31) between the first longitudinal beam segment (11) and the third longitudinal beam segment (13) at the first end (101), and install a second cover plate assembly (32) between the first longitudinal beam segment (11) and the third longitudinal beam segment (13) at the second end (102).

7. The method for manufacturing a vehicle frame according to any one of claims 1-6, characterized in that, The frame (100) also includes a transformer beam assembly (6); The chassis manufacturing method further includes steps S200-S300: S240: Hoist the transformer beam assembly (6) to the predetermined installation position located between the first end (101) and the second end (102); Step S300 further includes: connecting the transformer beam assembly part (6) to the two second longitudinal beam segments (12) simultaneously.

8. The method for manufacturing a vehicle frame according to claim 7, characterized in that, The frame (100) also includes two intermediate beams (7), the intermediate beams (7) including a first intermediate beam segment (71) and a second intermediate beam segment (72); The chassis manufacturing method also includes steps prior to S200: S110: Process the two first intermediate beam segments (71) and the two second intermediate beam segments (72) respectively. In step S200, the first intermediate component is one of the first intermediate beam segments (71), and in the first end (101), the first longitudinal beam segment (11), the first intermediate beam segment (71), and the third longitudinal beam segment (13) are arranged parallel and spaced apart; the second intermediate component is another first intermediate beam segment (71), and in the second end (102), the first longitudinal beam segment (11), the first intermediate beam segment (71), and the third longitudinal beam segment (13) are arranged parallel and spaced apart; The chassis manufacturing method further includes steps S240-S300: S250: Connect one end of one of the second intermediate beam segments (72) to one of the first intermediate beam segments (71), and connect the other end to the transformer beam assembly (6); connect one end of another second intermediate beam segment (72) to another first intermediate beam segment (71), and connect the other end to the transformer beam assembly (6).

9. The method for manufacturing a vehicle frame according to any one of claims 1-6, characterized in that, In step S200, the method for connecting the first longitudinal beam segment (11) and the third longitudinal beam segment (13) includes: Multiple crossbeams (8) are placed between the first longitudinal beam segment (11) and the third longitudinal beam segment (13), and the multiple crossbeams (8) are arranged at intervals along the extension direction of the first longitudinal beam segment (11). Then, the first longitudinal beam segment (11) is connected to one end of the multiple crossbeams (8) at the same time, and the third longitudinal beam segment (13) is connected to the other end of the multiple crossbeams (8) at the same time.

10. The method for manufacturing a vehicle frame according to claim 9, characterized in that, Step S200 further includes: placing a connecting beam (81) and simultaneously connecting the connecting beam (81) to the plurality of beams (8).

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