Axle of wide-body vehicle

Abstract

The invention provides a wide-body vehicle axle which comprises a first main pin seat, a second main pin seat, an upper wing plate, a lower wing plate and two side plates, a first main pin shaft comprises two oppositely arranged first side wings, a second main pin shaft comprises two oppositely arranged second side wings, the two side plates are oppositely arranged, one end of each side plate is fixedly connected with the corresponding first side wing, and the other end of each side plate is fixedly connected with the corresponding second side wing. The first main pin seat comprises a first upper boss and a first lower boss which are oppositely arranged, the second main pin shaft comprises a second upper boss and a second lower boss which are oppositely arranged, and the upper wing plate is fixedly connected between the first upper boss and the second upper boss; the lower wing plate is fixedly connected between the first lower boss and the second lower boss, and the first main pin seat, the second main pin seat, the upper wing plate, the lower wing plate and the two side plates form an axle body. The axle of the wide-body vehicle is simple in structure, high in overall strength, low in self weight and low in cost, and the production difficulty is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, and in particular to an axle of a wide-body vehicle. Background Art

[0002] The axle is one of the core components of a wheeled vehicle. It is connected to the frame through a suspension. Wheels are installed at both ends of the axle to bear the load of the vehicle and maintain the normal driving of the vehicle on the road. Mining dump trucks are used in harsh conditions. Heavy-load uphill and downhill operations account for a high proportion and the slope is large. They are often accompanied by high-frequency impact alternating loads, which have high requirements for the load-bearing capacity and welding quality of the axle. In addition, the road conditions in the mining area are poor and the road maintenance is not timely, which has high requirements for the passability of the dump truck. The axle is the core of the vehicle chassis, and its ground clearance can largely represent the passability of the vehicle.

[0003] Axles can be roughly divided into steering axles, drive axles, etc. in terms of function. In addition to being a necessary steering actuator for dump trucks, the steering axle of a mining dump truck also bears a certain proportion of the load for the equipment. Taking an off-road wide-body dump truck (hereinafter referred to as "wide-body truck") as an example, the load it bears is generally 15%-25%. The axle shell of the steering axle of a wide-body truck is mostly an integral welded structure. The existing welded axle mainly includes the front axle body, the thrust rod seat, and the suspension cylinder seat. The front axle body is composed of two side plates, upper and lower wing plates, left and right guard plates, upper bosses, and lower bosses through welding. The cross section is rectangular. The upper and lower wing plates are bent into shape after the kingpin holes are processed. When welding, the lower wing plate is generally fixed first, and the side plates and the left and right guard plates are welded to the lower wing plate in turn, and then the upper wing plate is welded, and finally the upper boss and the lower boss are welded. Therefore, the main body of the existing welded axle structure is plate blanking and bending processing, which is relatively low in cost. Therefore, there is also a phenomenon that the overall strength of the axle shell is relatively low, and the welds of the left and right guard plates are prone to cracking.

[0004] Although the existing forged axle structure has largely avoided the problem of insufficient axle strength and reduced the axle's own weight, the forged axle structure not only has high processing costs, but also has mold costs, which seriously restricts the promotion and use of the forged axle structure in the mining car industry. Summary of the invention

[0005] In view of this, an object of the present invention is to provide an axle for a wide-body vehicle, which has a simple structure, high overall strength, low weight, low cost, and reduced production difficulty.

[0006] The present invention provides an axle of a wide-body vehicle, comprising a first kingpin seat, a second kingpin seat, an upper wing plate, a lower wing plate and two side plates, the first kingpin shaft comprising two first side wings arranged oppositely, the second kingpin shaft comprising two second side wings arranged oppositely, the two side plates are arranged oppositely, one end of each side plate is fixedly connected to each first side wing, and the other end of each side plate is fixedly connected to each second side wing, the first kingpin seat comprises a first upper boss and a first lower boss arranged oppositely, the second kingpin shaft comprises a second upper boss and a second lower boss arranged oppositely, the upper wing plate is fixedly connected between the first upper boss and the second upper boss, the lower wing plate is fixedly connected between the first lower boss and the second lower boss, and the first kingpin seat, the second kingpin seat, the upper wing plate, the lower wing plate and the two side plates form an axle body.

[0007] In one embodiment, a first crescent opening is provided at one end of the first side wing close to the side panel, a first crescent portion is provided at one end of the side panel cooperating with the first side wing, the first crescent opening cooperates with the first crescent portion to be fixedly connected, a second crescent opening is provided at one end of the second side wing close to the side panel, a second crescent portion is provided at one end of the side panel cooperating with the second side wing, the second crescent opening cooperates with the second crescent portion to be fixedly connected.

[0008] In one embodiment, the upper wing plate includes a first connecting plate, a second connecting plate and a third connecting plate fixedly connected in sequence, a first angle a is formed between the first connecting plate and the second connecting plate, and the first angle a is 120° to 170°, a second angle b is formed between the second connecting plate and the third connecting plate, and the second angle b is 120° to 170°, and the structures at both ends of the upper wing plate are symmetrically arranged; the lower wing plate includes a fourth connecting plate, a fifth connecting plate and a sixth connecting plate fixedly connected in sequence, a third angle c is formed between the fourth connecting plate and the fifth connecting plate, and the third angle c is 120° to 170°, a fourth angle d is formed between the fifth connecting plate and the sixth connecting plate, and the fourth angle d is 120° to 170°, and the structures at both ends of the lower wing plate are symmetrically arranged.

[0009] In one embodiment, the first side wing is fixedly connected to a first limit block, and the second side wing is fixedly connected to a second limit block, and the first limit block and the second limit block are used to limit the steering structure of the axle.

[0010] In one embodiment, the axle of the wide-body vehicle also includes a first crescent block and a second crescent block, and the first crescent block and the second crescent block are respectively fixedly connected to the upper wing plate, the first crescent block is arranged at one end of the upper wing plate close to the first kingpin seat, and the second crescent plate is arranged at one end of the upper wing plate close to the second kingpin seat.

[0011] In one embodiment, the axle of the wide-body vehicle further includes a steering cylinder seat, and the steering cylinder seat is fixedly connected to the side plate.

[0012] In one embodiment, the steering cylinder seat includes a base plate, a first fixed plate, a second fixed plate, a first reinforcing plate and a threaded seat, the first fixed plate and the second fixed plate are arranged opposite to each other and are respectively fixedly connected to the base plate, the first reinforcing plate is fixedly connected between the first fixed plate and the second fixed plate, the base plate is fixedly connected to the side plate, the threaded seat is fixedly connected to the first fixed plate, and the threaded seat is used to install and limit the first pin shaft of the steering cylinder seat.

[0013] In one embodiment, the axle of the wide-body vehicle includes two suspension cylinder supports and two longitudinal push rod supports, each of the suspension cylinder supports is fixedly connected to the upper wing plate, each of the longitudinal push rod supports is arranged opposite to the steering cylinder support, one end of each of the longitudinal push rod supports is fixedly connected to each of the suspension cylinder supports, and the other end of each of the longitudinal push rod supports is fixedly connected to one of the side plates.

[0014] In one embodiment, the suspension cylinder support includes a first vertical plate, a second vertical plate, a second reinforcement plate and a first cover plate, the first vertical plate and the second vertical plate are arranged opposite to each other, the second reinforcement plate is fixedly connected between the first vertical plate and the second vertical plate, the suspension cylinder support is provided with a second axial hole, the second axial hole passes through the first vertical plate and the second vertical plate, the second pin shaft cooperates with the second axial hole for installing the suspension cylinder, the first cover plate is fixedly connected to the first vertical plate, the first cover plate is provided with a first groove, and the limiting portion of the second pin shaft is arranged in the first groove for radially limiting and axially limiting the second pin shaft.

[0015] In one embodiment, the first kingpin seat is provided with a first pin hole, and the second kingpin seat is provided with a second pin hole, and the first pin hole and the second pin hole are used to install a kingpin of a vehicle.

[0016] The axle of the present invention is provided with a first kingpin seat and a second kingpin seat, and the upper wing plate, the lower wing plate and the two side plates are respectively fixedly connected between the first kingpin seat and the second kingpin seat to form a complete axle body. It not only has a simple structure, reduces the dead weight of the axle, and increases the strength of the axle, but also can take into account the convenience of production and processing, reduce production difficulty and production cost, has high load-bearing capacity and high reliability, and the overall structure and function are more perfect. It is suitable for harsh working environments such as heavy-load uphill and downhill in mines and rugged roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic structural diagram of the axle of the wide-body vehicle of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the axle body of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the first kingpin seat of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the steering cylinder seat of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the suspension oil cylinder support of the present invention.

[0023] Description of the reference numerals: first crescent-shaped opening 101; first pin hole 104; second pin hole 105; second shaft hole 106; axle body 11; first kingpin seat 111; first seat body 1111; first side wing 1112; first upper boss 1113; first lower boss 1114; second kingpin seat 112; second side wing 1122; second upper boss 1123; upper wing plate 113; first connecting plate 1131; second connecting plate 1132; third connecting plate 1133; lower wing plate 114; side plate 115 ; The first limit block -116; The second limit block -117; The first crescent block -121; The second crescent block -122; The steering cylinder seat -13; The bottom plate -131; The first fixed plate -132; The second fixed plate -133; The first reinforcing plate -134; The threaded seat -135; The suspension cylinder support -14; The first vertical plate -141; The first bending part -1411; The second vertical plate -142; The second bending part -1421; The second reinforcing plate -143; The first cover plate -144; The second pin shaft -145; The first groove -103; The longitudinal push rod support -15.

[0024] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0029] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0030] like Figures 1 to 5As shown, the axle of the wide-body vehicle includes a first kingpin seat 111, a second kingpin seat 112, an upper wing plate 113, a lower wing plate 114 and two side plates 115, the first kingpin shaft includes two first side wings 1112 arranged oppositely, the second kingpin shaft includes two second side wings 1122 arranged oppositely, the two side plates 115 are arranged oppositely, one end of each side plate 115 is fixedly connected to each first side wing 1112, and the other end of each side plate 115 is fixedly connected to each second side wing 1122, the first kingpin seat 111 includes a first upper boss 1113 and a first lower boss 1114 arranged oppositely, the second kingpin shaft includes two first side wings 1122 arranged oppositely, the two side plates 115 are arranged oppositely, and the first kingpin seat 111 includes a first upper boss 1113 and a first lower boss 1114 arranged oppositely. The axle body 11 comprises a second upper boss 1123 and a second lower boss which are arranged opposite to each other, an upper wing plate 113 is fixedly connected between the first upper boss 1113 and the second upper boss 1123, wherein the first upper boss 1113 and the second upper boss 1123 are used to install and weld the upper wing plate 113, a lower wing plate 114 is fixedly connected between the first lower boss 1114 and the second lower boss, the first lower boss 1114 and the second lower boss are used to install and weld the lower wing plate 114, a first kingpin seat 111, a second kingpin seat 112, an upper wing plate 113, a lower wing plate 114 and two side plates 115 form the axle body 11. The first kingpin seat 111 is provided with a first pin hole 104, the second kingpin seat 112 is provided with a second pin hole 105, and the first pin hole 104 and the second pin hole 105 are used to install the kingpin of the vehicle. In this embodiment, the first kingpin seat 111 and the second kingpin seat 112 are cast integral structures, not welded structures. The first kingpin shaft also includes a first seat body 1111, a first side wing 1112, a first upper boss 1113 and a first lower boss 1114 are respectively fixedly connected to the first seat body 1111, and a first pin hole 104 is set through the first upper boss 1113, the first seat body 1111 and the first lower boss 1114; the second kingpin shaft also includes a second seat body, a second side wing 1122, a second upper boss 1123 and a second lower boss are respectively fixedly connected to the second seat body, and a second pin hole 105 is set through the second upper boss 1123, the second seat body and the second lower boss; it can be understood that the first seat body 1111, the first side wing 1112, the first upper boss 1113 and the first lower boss 1114 are cast to form the first kingpin seat 111, and the second seat body, the second side wing 1122, the second upper boss 1123 and the second lower boss are cast to form the first kingpin seat 111. The first kingpin seat 111, the second kingpin seat 112, the upper wing plate 113, the lower wing plate 114 and the two side plates 115 are fixed by welding. Therefore, the first kingpin seat 111 and the second kingpin seat 112, which are integrally cast, are the main load-bearing positions of the axle, and are stronger and more reliable than the welded structure of the traditional axle.

[0031] The axle of the present invention is provided with a first kingpin seat 111 and a second kingpin seat 112, and an upper wing plate 113, a lower wing plate 114 and two side plates 115 are respectively fixedly connected between the first kingpin seat 111 and the second kingpin seat 112 to form a complete axle body 11. It not only has a simple structure, reduces the dead weight of the axle, and increases the strength of the axle, but also can take into account the convenience of production and processing, reduce the difficulty of production, and production costs, has high load-bearing capacity and high reliability, and the overall structure and function are more perfect. It is suitable for harsh working environments such as heavy-load uphill and downhill in mines and rugged roads.

[0032] like Figures 1 to 3 As shown, a first crescent opening 101 is provided at one end of the first wing 1112 close to the side plate 115, a first crescent portion is provided at one end of the side plate 115 cooperating with the first wing 1112, the first crescent opening 101 cooperates with the first crescent portion for fixed connection, a second crescent opening 1122 is provided at one end of the second wing 1122 close to the side plate 115, a second crescent portion is provided at one end of the side plate 115 cooperating with the second wing 1122, the second crescent opening cooperates with the second crescent portion for fixed connection; the first crescent opening 101 and the first crescent portion, the second crescent opening and the second crescent portion can make the weld splicing more reasonable and the welding strength more reliable, the first seat body 1111 of the first kingpin seat 111 and the second seat body of the second kingpin seat 112 replace the left and right guard plates of the traditional axle, which greatly reduces the production difficulty and increases the strength of the axle body 11.

[0033] Preferably, the upper wing plate 113 includes a first connecting plate 1131, a second connecting plate 1132 and a third connecting plate 1133 that are fixedly connected in sequence, a first angle a is formed between the first connecting plate 1131 and the second connecting plate 1132, and the first angle a is 120° to 170°, a second angle b is formed between the second connecting plate 1132 and the third connecting plate 1133, and the second angle b is 120° to 170°, and the structures at both ends of the upper wing plate 113 are symmetrically arranged; the lower wing plate 114 includes a fourth connecting plate, a fifth connecting plate and a sixth connecting plate that are fixedly connected in sequence, a third angle c is formed between the fourth connecting plate and the fifth connecting plate, and the third angle c is 120° to 170°, a fourth angle d is formed between the fifth connecting plate and the sixth connecting plate, and the fourth angle d is 120° to 170°, and the structures at both ends of the lower wing plate 114 are symmetrically arranged; In the embodiment, the above-mentioned 120°~170° is preferably 120°, 130°, 140°, 150°, 160° or 170°, etc. The setting of the first angle a, the second angle b, the third angle c and the fourth angle d in this embodiment can increase the ground clearance of the axle, so that the axle body 11 can maximize the ground clearance of the axle on the basis of high load-bearing capacity and high reliability; in addition, by setting different chamfers, slopes and depths on the first kingpin seat 111 and the second kingpin seat 112, the welding of the axle body 11 is made simpler and more reasonable to enhance the welding strength of the axle body 11, for example, the chamfer structure of the first seat body 1111, the chamfer structure of the second seat body, the inclination angle of the first side wing 1112, the inclination angle of the second side wing 1122, the depth of the first pin hole 104 and the depth of the second pin hole 105, etc.

[0034] Preferably, the first side wing 1112 is fixedly connected to a first limit block 116, and the second side wing 1122 is fixedly connected to a second limit block 117, and the first limit block 116 and the second limit block 117 are used to limit the steering structure of the axle.

[0035] Please continue to refer to Figures 1 to 3 The axle of the wide-body vehicle also includes a first crescent block 121 and a second crescent block 122, which are respectively fixedly connected to the upper wing plate 113. The first crescent block 121 is arranged at one end of the upper wing plate 113 close to the first kingpin seat 111, and the second crescent block is arranged at one end of the upper wing plate 113 close to the second kingpin seat 112. The first crescent block 121 and the second crescent block 122 are used to enhance the local structural strength.

[0036] like Figure 1 and Figure 4As shown, the axle of the wide-body vehicle further includes a steering cylinder seat 13, which is fixedly connected to the side plate 115, and the steering cylinder seat 13 is a mounting position for the steering cylinder of the vehicle. The steering cylinder seat 13 includes a bottom plate 131, a first fixing plate 132, a second fixing plate 133, a first reinforcing plate 134 and a threaded seat 135. The first fixing plate 132 and the second fixing plate 133 are arranged opposite to each other and are fixedly connected to the bottom plate 131 respectively. The first reinforcing plate 134 is fixedly connected between the first fixing plate 132 and the second fixing plate 133 for positioning and increasing the structural strength. The bottom plate 131 is fixedly connected to the side plate 115, so that the first fixing plate 132 and the second fixing plate 133 are fixedly connected to the side plate 115 of the axle body 11 through the bottom plate 131. The bottom plate 131 can increase the welding area between the steering cylinder seat 13 and the side plate 115 and increase the structural strength. The threaded seat 135 is fixedly connected to the first fixing plate 132. The threaded seat 135 is used to install and limit the first pin shaft of the steering cylinder seat 13. In this embodiment, the threaded seat 135 is welded on the first fixed plate 132, the steering cylinder seat 13 is provided with a first axial hole, the first axial hole penetrates the first fixed plate 132 and the second fixed plate 133, the first pin shaft cooperates with the first axial hole for installing the steering cylinder, wherein the threaded seat 135 is provided with a first slot, and the limiting portion of the first pin shaft is arranged in the first slot to realize the radial limiting and axial limiting of the first pin shaft. Among them, the bottom plate 131 can be a whole plate structure, the whole plate structure can further increase the welding area of ​​the steering cylinder seat 13 and the side plate 115 to increase the welding strength, and the bottom plate 131 can also be two split plates, and the split plates can further reduce the dead weight of the axle.

[0037] like Figure 1 and Figure 5 As shown, the axle of the wide-body vehicle includes two suspension cylinder supports 14 and two longitudinal push rod supports 15, each suspension cylinder support 14 is fixedly connected to the axle body 11, that is, each suspension cylinder support 14 is welded to the upper wing plate 113, and the suspension cylinder support 14 is used to provide an installation position for the vehicle's lifting cylinder and transverse push rod. Each longitudinal push rod support 15 is arranged opposite to the steering cylinder support, one end of each longitudinal push rod support 15 is fixedly connected to each suspension cylinder support 14, and the other end of each longitudinal push rod support 15 is fixedly connected to a side plate 115 to increase the structural strength and structural stability of the longitudinal push rod support 15.

[0038] like Figure 5As shown, the suspension cylinder support 14 includes a first vertical plate 141, a second vertical plate 142, a second reinforcing plate 143 and a first cover plate 144. The first vertical plate 141 and the second vertical plate 142 are arranged opposite to each other. The second reinforcing plate 143 is fixedly connected between the first vertical plate 141 and the second vertical plate 142, and is used to fix the first vertical plate 141 and the second vertical plate 142 and increase the structural strength of the suspension cylinder support 14. The suspension cylinder support 14 is provided with at least two second shaft holes 106, and the second shaft hole 106 runs through the first vertical plate 141 and the second vertical plate 142. The second pin shaft 145 cooperates with the second shaft hole 106 to install the suspension cylinder, the push rod, etc. The first cover plate 14 4 is fixedly connected to the first vertical plate 141, the first cover plate 144 is provided with a first groove 103, and the limiting portion of the second pin shaft 145 is arranged in the first groove 103 for radially limiting and axially limiting the second pin shaft 145, wherein the first cover plate 144 is mounted on the first vertical plate 141 by bolts to limit the rotation and axial movement of the pin shaft and avoid the possibility of the bolt being cut off; the second pin shaft 145 is directly mounted on the axle to fix the oil cylinder and the push rod lamp of the vehicle. According to different fixing structures, the second pin shaft 145 has different diameters and lengths, but it can be understood that the second pin shaft 145 is used for installation and fixing on the suspension oil cylinder support 14. In this embodiment, the two ends of the first vertical plate 141 are processed to form a bending structure, called the first bending part 1411, which is used to improve the welding thermal stress zone, and the thickness of the first bending part 1411 is less than the thickness of the first vertical plate 141, which is convenient for grinding into a dovetail shape after welding to increase the fatigue life of the weld; the two ends of the second vertical plate 142 are processed to form a bending structure, called the second bending part 1421, which is used to improve the welding thermal stress zone, and the thickness of the second bending part 1421 is less than the thickness of the second vertical plate 142, which is convenient for grinding into a dovetail shape after welding to increase the fatigue life of the weld. In addition, the suspension cylinder seat also includes a plurality of stickers, which are annular plates, fixedly connected to the two sides of the first vertical plate 141 and the second vertical plate 142, and arranged at the second shaft hole 106 and other through holes of the suspension cylinder support 14, and the stickers are used to raise the structure to facilitate the installation of other parts of the vehicle.

[0039] It is understandable that the structure of the longitudinal push rod support 15 is the same or substantially the same as that of the suspension cylinder support 14 , and will not be described in detail herein.

[0040] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A vehicle axle of a wide-body vehicle, characterized in that: The invention comprises a first kingpin seat (111), a second kingpin seat (112), an upper wing plate (113), a lower wing plate (114) and two side plates (115), wherein the first kingpin shaft comprises two first side wings (1112) arranged opposite to each other, the second kingpin shaft comprises two second side wings (1122) arranged opposite to each other, the two side plates (115) are arranged opposite to each other, one end of each side plate (115) is fixedly connected to each first side wing (1112), and the other end of each side plate (115) is fixedly connected to each second side wing (1122), the first kingpin seat (111) comprises two first side wings (1112) arranged opposite to each other, and the second side wings (1122) are fixedly connected to each second side wing (1122). The first kingpin seat (111), the second kingpin seat (112), the upper wing plate (113), the lower wing plate (114) and the two side plates (115) form an axle body (11).

2. The axle of a wide-body vehicle according to claim 1, characterized in that: A first crescent opening (101) is provided at one end of the first side wing (1112) close to the side panel (115), a first crescent portion is provided at one end of the side panel (115) cooperating with the first side wing (1112), the first crescent opening (101) and the first crescent portion are cooperated to be fixedly connected, a second crescent opening is provided at one end of the second side wing (1122) close to the side panel (115), a second crescent portion is provided at one end of the side panel (115) cooperating with the second side wing (1122), the second crescent opening and the second crescent portion are cooperated to be fixedly connected.

3. The axle of a wide-body vehicle according to claim 1, characterized in that: The upper wing plate (113) comprises a first connecting plate (1131), a second connecting plate (1132) and a third connecting plate (1133) which are fixedly connected in sequence, a first angle a is formed between the first connecting plate (1131) and the second connecting plate (1132), and the first angle a is 120° to 170°, a second angle b is formed between the second connecting plate (1132) and the third connecting plate (1133), and the second angle b is 120° to 170°, and the structures at both ends of the upper wing plate (113) are symmetrically arranged; the lower wing plate (114) comprises a fourth connecting plate, a fifth connecting plate and a sixth connecting plate which are fixedly connected in sequence, a third angle c is formed between the fourth connecting plate and the fifth connecting plate, and the third angle c is 120° to 170°, a fourth angle d is formed between the fifth connecting plate and the sixth connecting plate, and the fourth angle d is 120° to 170°, and the structures at both ends of the lower wing plate (114) are symmetrically arranged.

4. The axle of a wide-body vehicle according to claim 1, characterized in that: The first side wing (1112) is fixedly connected to a first limit block (116), and the second side wing (1122) is fixedly connected to a second limit block (117), and the first limit block (116) and the second limit block (117) are used to limit the steering structure of the axle.

5. The axle of a wide-body vehicle according to claim 1, characterized in that: The axle of the wide-body vehicle further comprises a first crescent block (121) and a second crescent block (122), wherein the first crescent block (121) and the second crescent block (122) are respectively fixedly connected to the upper wing plate (113), wherein the first crescent block (121) is arranged at one end of the upper wing plate (113) close to the first kingpin seat (111), and the second crescent plate is arranged at one end of the upper wing plate (113) close to the second kingpin seat (112).

6. The axle of a wide-body vehicle according to claim 1, characterized in that: The axle of the wide-body vehicle further comprises a steering cylinder seat (13), and the steering cylinder seat (13) is fixedly connected to the side plate (115).

7. The axle of a wide-body vehicle according to claim 6, characterized in that: The steering cylinder seat (13) comprises a bottom plate (131), a first fixing plate (132), a second fixing plate (133), a first reinforcing plate (134) and a threaded seat (135); the first fixing plate (132) and the second fixing plate (133) are arranged opposite to each other and are respectively fixedly connected to the bottom plate (131); the first reinforcing plate (134) is fixedly connected between the first fixing plate (132) and the second fixing plate (133); the bottom plate (131) is fixedly connected to the side plate (115); the threaded seat (135) is fixedly connected to the first fixing plate (132); and the threaded seat (135) is used to install and limit a first pin shaft of the steering cylinder seat (13).

8. The axle of a wide-body vehicle according to claim 6, characterized in that: The axle of the wide-body vehicle comprises two suspension cylinder supports (14) and two longitudinal push rod supports (15), each of the suspension cylinder supports (14) is fixedly connected to the upper wing plate (113), each of the longitudinal push rod supports (15) is arranged opposite to the steering cylinder support, one end of each of the longitudinal push rod supports (15) is fixedly connected to each of the suspension cylinder supports (14), and the other end of each of the longitudinal push rod supports (15) is fixedly connected to one of the side plates (115).

9. The axle of a wide-body vehicle according to claim 1, characterized in that: The suspension cylinder support (14) comprises a first vertical plate (141), a second vertical plate (142), a second reinforcing plate (143) and a first cover plate (144); the first vertical plate (141) and the second vertical plate (142) are arranged opposite to each other; the second reinforcing plate (143) is fixedly connected between the first vertical plate (141) and the second vertical plate (142); the suspension cylinder support (14) is provided with a second axial hole (106); the second axial hole (106) passes through the first vertical plate (141) and the second vertical plate (142); the second pin shaft (145) cooperates with the second axial hole (106) to install the suspension cylinder; the first cover plate (144) is fixedly connected to the first vertical plate (141); the first cover plate (144) is provided with a first groove (103); a limiting portion of the second pin shaft (145) is arranged in the first groove (103) to limit the second pin shaft (145) radially and axially.

10. The axle of a wide-body vehicle according to claim 1, characterized in that: The first kingpin seat (111) is provided with a first pin hole (104), and the second kingpin seat (112) is provided with a second pin hole (105). The first pin hole (104) and the second pin hole (105) are used to install the kingpin of the vehicle.

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