Steering carrier bridge housing and mining engineering vehicle

Abstract

The application discloses a bridge shell of a steering bearing bridge and a mining engineering vehicle, and relates to the technical field of bridge shells of steering bearing bridges. The bridge shell of the steering bearing bridge comprises a bridge shell main body and a steering knuckle seat. The bridge shell main body comprises a long straight section, an oblique extension section and a mounting section. The oblique extension section is arranged at the end of the long straight section and is arranged in an upward inclination in the direction in which the long straight section extends outward. The mounting section is arranged at one end of the oblique extension section away from the long straight section. The end of the bridge shell main body forms a mounting space with a lateral opening. The lateral opening extends from the outer end of the mounting section to the oblique extension section. The steering knuckle seat is arranged in the mounting space and comprises a king pin sleeve and an outward extension part extending outward from the outer periphery of the king pin sleeve. The king pin sleeve is arranged in the mounting section and is welded with the mounting section. The outward extension part extends from the mounting section to the oblique extension section and is welded with the edge of the lateral opening, so that the structural strength and reliability are improved.

Description

Technical Field

[0001] This application belongs to the technical field of mining engineering vehicles, specifically relating to a steering load-bearing axle housing and a mining engineering vehicle. Background Technology

[0002] In open-pit mining and other similar operating environments, mining vehicles undertake heavy transportation tasks, primarily operating under conditions of heavy loads, steep slopes, and poor road conditions. The steering axle is a key component of the mining vehicle chassis system, affecting the vehicle's load-bearing capacity and maneuverability. The steering axle functions to bear loads and provide steering. The axle housing is the core structural component of the steering axle, and its load-bearing capacity mainly depends on the structural strength of the axle housing.

[0003] As mining equipment becomes increasingly heavy-duty, the tonnage of mining vehicles is also increasing. Currently, the steering axle housings of existing mining vehicles are mainly constructed using welded plates, resulting in low structural strength, susceptibility to cracking, and difficulty in meeting the demands of large tonnage applications. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies, this application provides a steering load-bearing axle housing and a mining engineering vehicle, aiming to solve the technical problem that the existing steering load-bearing axle housing is mainly made of welded plate material, resulting in low structural strength.

[0005] To achieve the above objectives, this application provides a steering load-bearing axle housing, wherein the steering load-bearing axle housing includes: a housing body, including a long straight section, an inclined extension section and a mounting section, the inclined extension section is located at the end of the long straight section and is inclined upward in the direction of the outward extension of the long straight section, the mounting section is located at the end of the inclined extension section away from the long straight section, and the end of the housing body forms a mounting space with a lateral opening, the lateral opening extending from the outer end of the mounting section to the inclined extension section; The steering knuckle seat is placed within the installation space and includes a kingpin sleeve and an extension extending outward from the outer periphery of the kingpin sleeve. The kingpin sleeve is placed in the installation section and welded to the installation section. The extension extends from the installation section to the inclined extension section and is welded to the edge of the lateral opening.

[0006] In this embodiment, the bridge housing body has an upper flange, a lower flange, and two side plates. The upper flange and lower flange are provided on the long straight section, the inclined extension section, and the mounting section. The upper flange and lower flange are arranged relatively spaced apart in the direction from top to bottom. The two side plates are connected to the upper flange and lower flange on opposite sides and extend from the long straight section to the inclined extension section to enclose and form the mounting space. There are two extensions, which are arranged relatively spaced on the kingpin sleeve and extend to the two side plates respectively. The two extensions are welded to the edges of the corresponding lateral openings.

[0007] In this embodiment, a first welding surface is formed at the end of the extension portion away from the kingpin sleeve, and a second welding surface is formed at the end of the side plate near the extension portion. An outwardly disposed lateral welding bevel is formed between the first welding surface and the second welding surface.

[0008] In this embodiment, the lateral welding bevel is located in the middle section of the inclined extension section, and the lateral welding bevel is arc-shaped in the extension direction.

[0009] In the embodiments of this application, the main pin sleeve and the outer extension are integrally cast parts. The first welding surface is set in an inwardly concave arc shape, and the second welding surface is set in an outwardly convex arc shape to form an arc-shaped lateral welding bevel.

[0010] In this embodiment of the application, the included angle of the lateral welding groove between the first welding surface and the second welding surface is 50°~70°.

[0011] In this embodiment, a placement space is formed between the two outer extensions of the steering knuckle seat. The axle housing of the steering bearing axle also includes a plate located in the placement space. The plate is located at the connection between the outer extension and the corresponding side plate and is attached to the side of the outer extension near the placement space. The plate is arc-shaped to match the arc-shaped lateral welding bevel.

[0012] In this embodiment of the application, a first suspension bracket and a second suspension bracket are spaced apart on the upper wing plate, a steering cylinder seat is provided on the side plate and the steering cylinder seat is located between the first suspension bracket and the second suspension bracket, and a reinforcing block is provided on the upper wing plate corresponding to the position of the kingpin sleeve, and the reinforcing block is located on the side of the kingpin sleeve close to the steering cylinder seat.

[0013] In this embodiment, the kingpin sleeve is used to sleeve the kingpin, and the portion of the kingpin extending out of the kingpin sleeve is rotatably mounted with a steering knuckle, which is provided with a steering limit part; the axle housing of the steering bearing axle also includes a limit block, which is welded to the extension portion, and the limit block is used to abut and limit the steering limit part.

[0014] In this embodiment, the extension includes a straight section and an inclined section connected to each other. The inclined section is inclined downward in a direction away from the straight section. The straight section is connected to the outer periphery of the kingpin sleeve. The opposite sides of the straight section are welded to the upper wing plate and the lower wing plate in the mounting section, respectively. The opposite sides of the inclined section are welded to the upper wing plate and the lower wing plate in the inclined extension section, respectively. The end of the inclined section away from the straight section is welded to the corresponding side plate.

[0015] In addition, this application also provides a mining engineering vehicle, which includes the axle housing of the steering load-bearing axle as described above.

[0016] Through the above technical solution, the axle housing of the steering load-bearing axle provided in this application embodiment has the following beneficial effects: In the technical solution of this application, the inclined extension section is located at the end of the long straight section, and the inclined extension section is inclined upward in the left-right direction. An installation space is formed at the end of the axle housing body for placing the steering knuckle seat. The installation space has a lateral opening in the front-rear direction, extending from the outer end of the installation section to the inclined extension section. The steering knuckle seat includes a kingpin sleeve and an extension portion, the extension portion extending outward from the outer periphery of the kingpin sleeve. The kingpin sleeve extends in the vertical direction and is used to fit over the kingpin. The kingpin sleeve is placed inside the installation section, and both the upper and lower sides of the kingpin sleeve are welded to the installation section to ensure a stable and reliable connection between the kingpin sleeve and the axle housing body. The extension extends from the mounting section to the inclined extension section, and the extension is welded to the edge of the lateral opening. That is, the upper side of the extension is welded to the upper edge of the lateral opening, the lower side of the extension is welded to the lower edge of the lateral opening, and the end of the extension away from the kingpin sleeve is welded to the inclined extension section, so that the steering knuckle seat can be stably and reliably connected to the axle housing body, while improving the overall structural strength of the axle housing.

[0017] This application provides an installation space with a lateral opening on the axle housing body, and an extension extending from the installation section to the inclined extension section on the steering knuckle seat. The extension section is welded to the edge of the lateral opening. Compared to the direct lateral welding of the steering knuckle seat to the installation section of the axle housing body, the lateral welding position of the steering knuckle seat to the axle housing body in this application is at the inclined extension section. The stress at this point is greatly reduced, which can effectively avoid weld cracking failures, improve structural strength and reliability, and meet the needs of large tonnage.

[0018] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the bridge shell of a steering load-bearing bridge according to an embodiment of this application from one view. Figure 2 This is a structural schematic diagram of the bridge shell of a steering load-bearing bridge according to an embodiment of this application from another perspective; Figure 3 This is a structural schematic diagram of the bridge shell of a steering load-bearing bridge according to an embodiment of this application from another perspective; Figure 4 This is a structural schematic diagram of the steering knuckle seat in the axle housing of a steering load-bearing axle according to an embodiment of this application; Figure 5 This is a partially enlarged schematic diagram of the bridge shell of a steering load-bearing bridge according to an embodiment of this application; Figure 6 This is a cross-sectional schematic diagram of the bridge shell of a steering load-bearing bridge according to an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures Detailed Implementation

[0021] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0022] The descriptions of directions such as "up", "down", "front", "back", "left", and "right" in this application are as follows: Figure 1 The directions shown are for reference only and are used to interpret the location. Figure 1 The relative positional relationship between the components in the shown posture is such that if the specific posture changes, the directional indication will also change accordingly.

[0023] The following description, with reference to the accompanying drawings, describes the axle housing of the steering load-bearing bridge and the mining vehicle of this application.

[0024] like Figures 1 to 6 As shown, this application provides a steering load-bearing axle housing, wherein the steering load-bearing axle housing includes a housing body 10 and a steering knuckle seat 20. The housing body 10 includes a long straight section 11, an inclined extension section 12, and a mounting section 13. The inclined extension section 12 is located at the end of the long straight section 11 and is inclined upward in the direction of the outward extension of the long straight section 11. The mounting section 13 is located at the end of the inclined extension section 12 away from the long straight section 11. The end of the housing body 10 forms a mounting space with a lateral opening 14, which extends from the outer end of the mounting section 13 to the inclined extension section 12. The steering knuckle seat 20 is placed in the mounting space and includes a kingpin sleeve 21 and an extension portion 22 extending outward from the outer periphery of the kingpin sleeve 21. The kingpin sleeve 21 is placed in the mounting section 13 and welded to the mounting section 13. The extension portion 22 extends from the mounting section 13 to the inclined extension section 12 and is welded to the edge of the lateral opening 14.

[0025] A long straight section 11 extends in the left-right direction, and an inclined extension section 12 is disposed at the end of the long straight section 11, and the inclined extension section 12 is inclined upward in the left-right direction. An installation space is formed at the end of the axle housing body 10 for placing the steering knuckle seat 20. The installation space has a lateral opening 14 arranged in the front-rear direction, extending from the outer end of the mounting section 13 to the inclined extension section 12. The steering knuckle seat 20 includes a kingpin sleeve 21 and an extension portion 22, which extends outward from the outer periphery of the kingpin sleeve 21. The kingpin sleeve 21 extends in the vertical direction and is used to fit over the kingpin. The kingpin sleeve 21 is placed inside the mounting section 13, and both the upper and lower sides of the kingpin sleeve 21 are welded to the mounting section 13 to ensure a stable and reliable connection between the kingpin sleeve 21 and the axle housing body 10. The extension 22 extends from the mounting section 13 to the inclined extension section 12, and the extension 22 is welded to the edge of the lateral opening 14. That is, the upper side of the extension 22 is welded to the upper edge of the lateral opening 14, the lower side of the extension 22 is welded to the lower edge of the lateral opening 14, and the end of the extension 22 away from the kingpin sleeve 21 is welded to the inclined extension section 12, so that the steering knuckle seat 20 can be stably and reliably connected to the axle housing body 10, thereby improving the overall structural strength of the axle housing.

[0026] This application provides an installation space with a lateral opening 14 on the axle housing body 10, and an extension 22 extending from the installation section 13 to the inclined extension section 12 on the steering knuckle seat 20. The extension 22 is welded to the edge of the lateral opening 14. Compared with the steering knuckle seat 20 being directly laterally welded to the installation section 13 of the axle housing body 10, the steering knuckle seat 20 in this application is laterally welded to the axle housing body 10 at the inclined extension section 12. The stress at this location is greatly reduced, which can effectively avoid weld cracking failure, improve structural strength and reliability, and meet the needs of large tonnage.

[0027] Specifically, the steering knuckle seat 20 can be manufactured using integral casting, improving its structural strength and reliability. Furthermore, casting allows the kingpin sleeve 21 and the extension portion 22 to be integrally formed, reducing the welding steps between them. The steering knuckle seat 20 can be integrally cast using ZG35CrMo, 40Cr, or 42CrMo, resulting in high structural strength. Moreover, a hybrid casting-welding structure is employed, using casting for the high-stress steering knuckle seat 20 where structural damage is likely, while welding is used for other areas. This improves structural strength and reliability, and compared to integral casting of the axle housing, it controls costs. It also allows for flexible selection of different axle housing bodies 10 and steering knuckle seats 20 for welding, meeting the needs of different users at a lower cost.

[0028] In the embodiments of this application, please refer to Figures 1 to 4 The bridge housing body 10 has an upper flange 15, a lower flange 16, and two side plates 17. The upper flange 15 and the lower flange 16 are provided on the long straight section 11, the inclined extension section 12, and the mounting section 13. The upper flange 15 and the lower flange 16 are arranged relatively spaced from top to bottom. The two side plates 17 are connected to the upper flange 15 and the lower flange 16 on opposite sides and extend from the long straight section 11 to the inclined extension section 12 to enclose and form an installation space. There are two extensions 22. The two extensions 22 are arranged relatively spaced on the main pin sleeve 21 and extend to the two side plates 17 respectively. The two extensions 22 are welded to the edges of the corresponding side openings 14.

[0029] Upper flange 15 and lower flange 16 are provided on the straight section 11, the inclined extension section 12, and the mounting section 13. Side plates 17 are provided on the straight section 11 and the inclined extension section 12. The upper flange 15 and lower flange 16 are spaced apart in the vertical direction. The upper and lower sides of the side plate 17 are connected to the upper flange 15 and lower flange 16 respectively. The side plate 17 extends from the straight section 11 to the inclined extension section 12, and the two side plates 17 are spaced apart in the front-rear direction. The upper flange 15, lower flange 16, and two side plates 17 enclose and form a mounting space. The mounting space has lateral openings 14 at the positions corresponding to the two side plates 17. Two extensions 22 are spaced apart relative to each other in the front-rear direction on the kingpin sleeve 21, and the two extensions 22 extend one-to-one towards the two side plates 17 respectively. The two extension portions 22 are welded to the edges of the corresponding lateral openings 14. The portion of the upper wing plate 15 extending out of the side plate 17 forms the upper edge of the lateral opening 14, and the portion of the lower wing plate 16 extending out of the side plate 17 forms the lower edge of the lateral opening 14. The end of the side plate 17 forms the bottom wall of the lateral opening 14. In other words, the upper side of the extension portion 22 is welded to the portion of the upper wing plate 15 extending out of the side plate 17, the lower side of the extension portion 22 is welded to the portion of the lower wing plate 16 extending out of the side plate 17, and the end of the extension portion 22 away from the kingpin sleeve 21 is welded to the end of the side plate 17.

[0030] Understandably, during installation, the two outer extensions 22 of the steering knuckle seat 20 can be connected and welded to the two side plates 17 one by one. Then, the upper wing plate 15 is fitted onto the upper end of the kingpin sleeve 21 and welded to the steering knuckle seat 20. The lower wing plate 16 is fitted onto the lower end of the kingpin sleeve 21 and welded to the steering knuckle seat 20. Then, the upper wing plate 15 and the lower wing plate 16 are welded to the upper and lower sides of the side plate 17 one by one.

[0031] like Figure 2As shown, inclined extension sections 12 are provided at both ends of the long straight section 11, and mounting sections 13 are provided at the ends of the two inclined extension sections 12 away from the long straight section 11. There are two steering knuckle seats 20, which are respectively provided on the left and right sides of the axle housing body 10.

[0032] In the embodiments of this application, please refer to Figure 5 The outer extension 22 has a first welding surface 221 at the end furthest from the kingpin sleeve 21, and the side plate 17 has a second welding surface 171 at the end closest to the outer extension 22. A lateral welding bevel 222 is formed between the first welding surface 221 and the second welding surface 171, facing outwards. By providing the lateral welding bevel 222, the continuity and uniformity of the weld can be effectively improved, defects can be reduced, and weld quality can be enhanced. The bevel design helps to disperse the thermal stress generated during welding, thereby reducing the risk of welding deformation and cracking. The bevel allows welders to better control the angle and position of the welding torch or electrode during welding, improving operational flexibility and convenience.

[0033] In the embodiments of this application, please refer to Figure 2 The lateral welding groove 222 is located in the middle section of the inclined extension section 12, and the lateral welding groove 222 is arc-shaped in the extension direction.

[0034] The lateral welding groove 222 is located in the middle section of the inclined extension 12, away from areas of high stress, thus improving the structural strength and stability of the bridge shell. It is understandable that the lateral welding groove 222 is not located at either end of the inclined extension 12, but rather in the middle section.

[0035] The lateral welding groove 222 is arc-shaped in the extension direction, which can extend the length of the weld and improve the connection strength and reliability of the weld.

[0036] In the embodiments of this application, please refer to Figure 2 The kingpin sleeve 21 and the extension portion 22 are integrally cast, improving the structural strength and reliability of the steering knuckle seat 20. Furthermore, casting allows the kingpin sleeve 21 and the extension portion 22 to be integrally formed, reducing the welding steps between them. The steering knuckle seat 20 can be integrally cast using ZG35CrMo, 40Cr, or 42CrMo, resulting in high structural strength.

[0037] The first welding surface 221 is set in a concave arc shape, and the second welding surface 171 is set in a convex arc shape to form a lateral welding bevel 222 with an arc shape. This setting can save casting materials and reduce costs compared to the first welding surface 221 being set in a convex arc shape.

[0038] It is understood that, in another embodiment, the first welding surface 221 may be configured in an outwardly convex arc shape, and the second welding surface 171 may be configured in an inwardly concave arc shape.

[0039] In the embodiments of this application, please refer to Figure 2 and Figure 5 The included angle of the lateral welding groove 222 between the first welding surface 221 and the second welding surface 171 is 50°~70°. If the included angle of the lateral welding groove 222 is less than 50°, it may be difficult to control the angle and position of the welding torch or welding rod; if the included angle of the lateral welding groove 222 is greater than 70°, the welding volume may be too large, leading to material waste and increased costs, uneven penetration, and possibly an insufficiently full molten pool, resulting in insufficient weld strength. Therefore, setting the included angle of the lateral welding groove 222 to 50°~70° can achieve higher welding strength while also facilitating control of the angle and position of the welding torch or welding rod.

[0040] Specifically, the included angle of the lateral welding bevel 222 can be 50°, 55°, 60°, 65° or 70°.

[0041] In the embodiments of this application, please refer to Figure 5 and Figure 6 A placement space 223 is formed between the two outer extensions 22 of the steering knuckle seat 20. The axle housing of the steering bearing axle also includes a plate 30 located in the placement space 223. The plate 30 is located at the connection between the outer extension 22 and the corresponding side plate 17 and is attached to the side of the outer extension 22 that is close to the placement space 223. The plate 30 is arc-shaped to match the arc-shaped side welding groove 222.

[0042] Two extensions 22 of the steering knuckle seat 20 are spaced apart in the front-rear direction, forming a placement space 223 between them. A mounting plate 30 is provided within the placement space 223. The mounting plate 30 is located at the connection between the extension 22 and the corresponding side plate 17, and is abutted against the side of the extension 22 closest to the placement space 223. The mounting plate 30 is arc-shaped to fit the arc-shaped lateral welding bevel 222. By providing the mounting plate 30, the welding strength between the extension 22 and the side plate 17 can be improved, effectively increasing the depth and width of the weld pool, thereby improving the weld penetration effect, effectively limiting deformation, reducing welding stress concentration, and improving the stability and safety of the structure.

[0043] In the embodiments of this application, please refer to Figure 1 and Figure 2The upper wing plate 15 is provided with a first suspension bracket 40 and a second suspension bracket 50 at intervals. The side plate 17 is provided with a steering cylinder seat 70 and the steering cylinder seat 70 is located between the first suspension bracket 40 and the second suspension bracket 50. The upper wing plate 15 is provided with a reinforcing block 151 at the position corresponding to the kingpin sleeve 21 and the reinforcing block 151 is located on the side of the kingpin sleeve 21 close to the steering cylinder seat 70.

[0044] The first suspension bracket 40 and the second suspension bracket 50 are spaced apart on the upper wing plate 15 in the left-right direction. The first suspension bracket 40 and the second suspension bracket 50 are used to connect to the vehicle through leaf springs and thrust rods. The steering cylinder seat 70 is set on the side plate 17 and is located between the first suspension bracket 40 and the second suspension bracket 50. The steering cylinder seat 70 is used to install the steering cylinder. A reinforcing block 151 is provided on the upper wing plate 15 corresponding to the position of the kingpin sleeve 21, and the reinforcing block 151 is located on the side of the kingpin sleeve 21 near the steering cylinder seat 70. The stress on the side of the kingpin sleeve 21 near the steering cylinder seat 70 is relatively large. By providing the reinforcing block 151, the structural strength at this point is improved, thereby improving the structural stability and reliability of the axle housing.

[0045] The reinforcing plate can be connected to the upper wing plate 15 by welding, or the reinforcing plate and the upper wing plate 15 can be integrally formed.

[0046] Specifically, both the first suspension bracket 40 and the second suspension bracket 50 include a leaf spring connecting frame 41 and a thrust rod seat 42. The leaf spring connecting frame 41 includes a connecting plate 411 and two connecting seats 412. The connecting plate 411 is connected to the upper wing plate 15 and extends out from both sides of the upper wing plate 15. The two connecting seats 412 are connected to the two ends of the connecting plate 411 extending out from the upper wing plate 15 and extend in a direction close to the lower wing plate 16. The two connecting seats 412 are connected to the two side plates 17 one-to-one and are used for detachable connection with the leaf spring. The thrust rod seat 42 is connected to the connecting plate 411 and is used to install the thrust rod.

[0047] The connecting plate 411 is used to place the leaf spring. The leaf spring and the connecting seat 412 are detachably connected by fasteners to realize the installation and fixation of the leaf spring. The two connecting seats 412 are connected to the two side plates 17 in a one-to-one correspondence. By setting the connecting seats 412 to the side plates 17, the contact area between the leaf spring connecting frame 41 and the bridge housing body 10 can be increased, thereby improving the connection strength between the leaf spring connecting frame 41 and the bridge housing body 10.

[0048] In the embodiments of this application, please refer to Figure 1 and Figure 2The kingpin sleeve 21 is used to fit over the kingpin. The part of the kingpin that extends out of the kingpin sleeve 21 is rotatably mounted with a steering knuckle. The steering knuckle is provided with a steering limit part. The axle housing of the steering load-bearing axle also includes a limit block 60. The limit block 60 is welded to the extension part 22 and is used to abut and limit the steering limit part.

[0049] The kingpin extends vertically and is fitted inside the kingpin sleeve 21, with both its upper and lower ends extending outside the sleeve 21. A steering knuckle is rotatably mounted on the portion of the kingpin extending outside the sleeve 21. A steering limit portion extending horizontally is provided on the steering knuckle. A limit block 60 is welded to the extension portion 22 to ensure a tight and reliable connection between the limit block 60 and the steering knuckle seat 20. Furthermore, the limit block 60 can be welded to different positions or different limit blocks 60 can be welded depending on the steering limit portion. The limit block 60 is used to abut against the steering limit portion to limit the rotation range of the steering knuckle.

[0050] In the embodiments of this application, please refer to Figure 2 and Figure 4 The extension 22 includes a straight section 224 and an inclined section 225 connected to each other. The inclined section 225 is inclined downward in a direction extending away from the straight section 224. The straight section 224 is connected to the outer periphery of the kingpin sleeve 21. The opposite sides of the straight section 224 are welded to the upper wing plate 15 and the lower wing plate 16 in the mounting section 13, respectively. The opposite sides of the inclined section 225 are welded to the upper wing plate 15 and the lower wing plate 16 in the inclined extension section 12, respectively. The end of the inclined section 225 away from the straight section 224 is welded to the corresponding side plate 17.

[0051] The straight section 224 extends in the left-right direction, while the inclined section 225 is inclined downwards in the direction away from the straight section 224. The straight section 224 is connected to the outer periphery of the kingpin sleeve 21 to achieve the connection between the extension 22 and the kingpin sleeve 21. Furthermore, the upper and lower sides of the straight section 224 are welded to the upper flange 15 and lower flange 16 in the mounting section 13, respectively, and the upper and lower sides of the inclined section 225 are welded to the upper flange 15 and lower flange 16 in the inclined extension section 12, respectively. The end of the inclined section 225 away from the straight section 224 is welded to the corresponding side plate 17. By setting the straight section 224 to connect the extension 22 to the mounting section 13 and setting the inclined section 225 to connect the extension 22 to the inclined extension section 12, the connection between the extension 22 and the bridge body is made more stable and reliable.

[0052] In addition, this application also provides a mining engineering vehicle, which includes the axle housing of the steering load-bearing axle as described above. The mining engineering vehicle can be a wide-body mining dump truck, a mining truck, or other mining vehicles. Since the mining engineering vehicle adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0053] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, an electrical connection, or a connection that allows communication between components; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A bridge housing for a steering load-bearing axle, characterized in that, The axle housing of the steering load-bearing axle includes: The bridge housing body (10) includes a long straight section (11), an inclined extension section (12), and an installation section (13). The inclined extension section (12) is located at the end of the long straight section (11) and is inclined upward in the direction of the outward extension of the long straight section (11). The installation section (13) is located at the end of the inclined extension section (12) away from the long straight section (11). The end of the bridge housing body (10) forms an installation space with a lateral opening (14). The lateral opening (14) extends from the outer end of the installation section (13) to the inclined extension section (12). Steering knuckle seat (20) is placed within the mounting space and includes a kingpin sleeve (21) and an extension (22) extending outward from the outer periphery of the kingpin sleeve (21). The kingpin sleeve (21) is placed in the mounting section (13) and welded to the mounting section (13). The extension (22) extends from the mounting section (13) toward the inclined section (12) and is welded to the edge of the lateral opening (14).

2. The axle housing of the steering load-bearing axle according to claim 1, characterized in that, The bridge housing body (10) has an upper wing plate (15), a lower wing plate (16), and two side plates (17). The upper wing plate (15) and the lower wing plate (16) are provided on the long straight section (11), the inclined extension section (12), and the mounting section (13). The upper wing plate (15) and the lower wing plate (16) are arranged relatively spaced from top to bottom. The two side plates (17) are connected to the upper wing plate (15) and the lower wing plate (16) on opposite sides and extend from the long straight section (11) to the inclined extension section (12) to enclose and form the mounting space. There are two extensions (22). The two extensions (22) are arranged relatively spaced on the main pin sleeve (21) and extend to the two side plates (17) respectively. The two extensions (22) are welded to the edges of the corresponding side openings (14).

3. The axle housing of the steering load-bearing axle according to claim 2, characterized in that, The extension portion (22) has a first welding surface (221) at the end away from the kingpin sleeve (21), and the side plate (17) has a second welding surface (171) at the end near the extension portion (22). A lateral welding bevel (222) is formed between the first welding surface (221) and the second welding surface (171).

4. The axle housing of the steering load-bearing axle according to claim 3, characterized in that, The lateral welding groove (222) is located in the middle section of the inclined extension section (12), and the lateral welding groove (222) is arc-shaped in the extension direction.

5. The axle housing of the steering load-bearing axle according to claim 3, characterized in that, The main pin sleeve (21) and the extension (22) are integrally cast parts. The first welding surface (221) is in a concave arc shape, and the second welding surface (171) is in a convex arc shape to form the arc-shaped lateral welding bevel (222).

6. The axle housing of the steering load-bearing axle according to claim 3, characterized in that, The included angle of the lateral welding groove (222) between the first welding surface (221) and the second welding surface (171) is 50°~70°.

7. The axle housing of the steering load-bearing axle according to claim 3, characterized in that, A placement space (223) is formed between the two extensions (22) of the steering knuckle seat (20). The axle housing of the steering bearing bridge also includes a plate (30) located in the placement space (223). The plate (30) is located at the connection between the extension (22) and the corresponding side plate (17) and is attached to the side of the extension (22) near the placement space (223). The plate (30) is arc-shaped to fit the arc-shaped side welding bevel (222).

8. The axle housing of the steering load-bearing axle according to claim 2, characterized in that, The upper wing plate (15) is provided with a first suspension bracket (40) and a second suspension bracket (50) spaced apart. The side plate (17) is provided with a steering cylinder seat (70) and the steering cylinder seat (70) is located between the first suspension bracket (40) and the second suspension bracket (50). The upper wing plate (15) is provided with a reinforcing block (151) corresponding to the position of the kingpin sleeve (21), and the reinforcing block (151) is located on the side of the kingpin sleeve (21) close to the steering cylinder seat (70). And / or, the kingpin sleeve (21) is used to be sleeved on the outside of the kingpin, and the part of the kingpin extending out of the kingpin sleeve (21) is rotatably mounted with a steering knuckle, and the steering knuckle is provided with a steering limiting part; the axle housing of the steering bearing axle also includes a limiting block (60), the limiting block (60) is welded to the extension part (22), and the limiting block (60) is used to abut and limit the steering limiting part.

9. The axle housing of the steering load-bearing axle according to claim 2, characterized in that, The extension (22) includes a straight section (224) and an inclined section (225) connected to each other. The inclined section (225) is inclined downward in a direction away from the straight section (224). The straight section (224) is connected to the outer periphery of the kingpin sleeve (21). The opposite sides of the straight section (224) are welded to the upper wing plate (15) and the lower wing plate (16) in the mounting section (13), respectively. The opposite sides of the inclined section (225) are welded to the upper wing plate (15) and the lower wing plate (16) in the inclined extension section (12), respectively. The end of the inclined section (225) away from the straight section (224) is welded to the corresponding side plate (17).

10. A mining engineering vehicle, characterized in that, The mining engineering vehicle includes the axle housing of the steering load-bearing axle according to any one of claims 1 to 9.

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