Suspension steering mechanism and off-highway mining dump truck

Abstract

This disclosure proposes a suspension steering mechanism and an off-highway mining dump truck. The suspension steering mechanism includes a steering knuckle, a steering arm, a mounting key, and a connecting member. The steering knuckle has a first mounting plane with a first keyway. The steering arm has a second mounting plane with a second keyway. The steering knuckle and steering arm are assembled via the first and second mounting planes, with the first and second keyways arranged opposite to each other. The second mounting plane has an angle greater than 90° and less than 180° with the steering plane of the suspension steering mechanism. The mounting key is accommodated in the first and second keyways. The connecting member connects the first and second mounting planes. Through the above design, this disclosure solves the stress concentration problem existing in off-highway mining dump trucks during operation, ensures the effective connection of the connecting member, and improves the reliability and stability of the mine truck steering system.

Description

Technical Field

[0001] This disclosure relates to the field of mining rail vehicle technology, and in particular to a suspension steering mechanism and an off-highway mining dump truck. Background Technology

[0002] With the advancement of science and technology, large-tonnage off-highway mining dump trucks have been widely used in open-pit mines. Their characteristics of short-distance, continuous operation, frequent turning, and uphill climbing necessitate a safe and reliable steering mechanism. In a MacPherson strut steering mechanism, the steering knuckle is fixed to the suspension axle via a suspension steel shaft, and the steering cylinder pushes the steering arm to achieve steering. However, due to limited installation space and complex manufacturing processes, the steering knuckle and steering arm are typically connected by bolts or other fasteners. Frequent turning and overloading can easily lead to stress concentration in this area, causing bolt breakage. Summary of the Invention

[0003] A primary objective of this disclosure is to overcome at least one of the deficiencies of the prior art described above and to provide a suspension steering mechanism that can avoid stress concentration problems.

[0004] To achieve the above objectives, the present disclosure adopts the following technical solution:

[0005] According to one aspect of this disclosure, a suspension steering mechanism is provided for an off-highway mining dump truck, comprising: a steering knuckle, a steering arm, a mounting key, and a connecting member; the steering knuckle having a first mounting plane having a first keyway; the steering arm having a second mounting plane having a second keyway; the steering knuckle and the steering arm being assembled via the first mounting plane and the second mounting plane, the first keyway and the second keyway being arranged opposite to each other; the second mounting plane having an angle greater than 90° and less than 180° with the steering plane of the suspension steering mechanism; the mounting key being received in the first keyway and the second keyway; and the connecting member being connected to the first mounting plane and the second mounting plane.

[0006] According to one embodiment of this disclosure, the angle between the second assembly plane and the turning plane is 100° to 150°.

[0007] According to one embodiment of the present disclosure, the steering arm includes a first arm and a second arm, the first arm and the second arm are bent and connected, the surface of the first arm facing the steering knuckle is the second mounting plane, and the second arm is arranged parallel to the steering plane.

[0008] According to one embodiment of this disclosure, the steering arm further includes a reinforcing rib connected to the second arm on the side surface of the first arm opposite to the steering knuckle.

[0009] According to one embodiment of this disclosure, a reference plane is defined parallel to the first assembly plane and the second assembly plane, on which the orthographic projection of the reinforcing rib at least partially overlaps with the orthographic projection of the assembly key.

[0010] According to one embodiment of this disclosure, the second assembly plane has a first region and a second region. The first region is a region that does not overlap with the orthographic projection of the second arm on a reference plane, and the second region is a region that overlaps with the orthographic projection of the second arm. The reference plane is parallel to the first assembly plane and the second assembly plane. The second keyway is disposed in the first region. The connecting member is a bolt, which includes a first bolt and a second bolt. The first bolt is located in the first region, and the second bolt is located in the second region. The first arm has a first through hole in the first region, and the first assembly plane has a first threaded hole corresponding to a portion of the first region. The first bolt passes through the first through hole and is screwed into the first threaded hole. The first arm has a second threaded hole in the second region, with a portion of the second threaded hole located in the second arm. The first assembly plane has a second through hole corresponding to a portion of the second region, and the second bolt passes through the second through hole and is screwed into the second threaded hole.

[0011] According to one embodiment of this disclosure, the assembly key is in the shape of a cross, the first keyway is in the shape of a cross, and the second keyway is in the shape of a cross.

[0012] According to one embodiment of this disclosure, the first assembly plane is divided into four third regions by the first keyway; wherein the connector includes a first connector, the first connector is divided into four groups, and the four groups of the first connector are respectively arranged in the four third regions.

[0013] According to one embodiment of this disclosure, each group of the first connectors includes at least two first connectors.

[0014] As can be seen from the above technical solution, the advantages and positive effects of the suspension steering mechanism proposed in this disclosure are as follows:

[0015] The suspension steering mechanism disclosed herein includes a steering knuckle, a steering arm, a mounting key, and a connecting member. The steering knuckle has a first mounting plane with a first keyway. The steering arm has a second mounting plane with a second keyway. The steering knuckle and steering arm are assembled via the first and second mounting planes, with the first and second keyways arranged opposite to each other. The second mounting plane has an angle greater than 90° and less than 180° with the steering plane of the suspension steering mechanism. The mounting key is accommodated in the first and second keyways. The connecting member connects the first and second mounting planes. Through the above design, this disclosure solves the stress concentration problem in off-highway mining dump trucks during operation by changing the structure of the steering knuckle and steering arm, optimizing the contact surface structure between the steering knuckle and steering arm, and connecting the steering knuckle and steering arm via the mounting key and connecting member. This ensures the effective connection of the connecting member and improves the reliability and stability of the mining truck steering system.

[0016] Another primary objective of this disclosure is to overcome at least one of the deficiencies of the prior art described above and to provide an off-highway mining dump truck employing the aforementioned suspension steering mechanism.

[0017] To achieve the above objectives, the present disclosure adopts the following technical solution:

[0018] According to one aspect of this disclosure, an off-highway mining dump truck is provided, wherein the suspension steering mechanism proposed in this disclosure and described in the above embodiments is included.

[0019] As can be seen from the above technical solution, the advantages and positive effects of the off-highway mining dump truck proposed in this disclosure are as follows:

[0020] The off-highway mining dump truck disclosed herein solves the stress concentration problem during operation by adopting the suspension steering mechanism proposed herein, ensuring effective connection of connecting parts and improving the reliability and stability of the mine truck steering system. Attached Figure Description

[0021] The various objectives, features, and advantages of this disclosure will become more apparent from the following detailed description of preferred embodiments of the disclosure taken in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of the disclosure and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0022] Figure 1 This is a schematic diagram of the structure of a suspension steering mechanism according to an exemplary embodiment;

[0023] Figure 2 yes Figure 1 An exploded three-dimensional diagram of the suspension steering mechanism is shown.

[0024] Figure 3 and Figure 4 They are Figure 1 The diagram shows the three-dimensional structure of the suspension arm from two different perspectives.

[0025] Figure 5 yes Figure 2 The diagram shows a three-dimensional structure of the assembly key.

[0026] The annotations in the attached figures are explained as follows:

[0027] 100. Steering knuckle;

[0028] 101. First assembly plane;

[0029] 1011. First threaded hole;

[0030] 1012. Second through hole;

[0031] 102. First keyway;

[0032] 200. Steering arm;

[0033] 201. Second assembly plane;

[0034] 2011. First Region;

[0035] 2012. Second Region;

[0036] 202. Turning plane;

[0037] 203. Second keyway;

[0038] 210. First arm;

[0039] 2101. First through hole;

[0040] 2102. Second threaded hole;

[0041] 220. Second arm;

[0042] 230. Reinforcing ribs;

[0043] 300. Assembly key;

[0044] 310. Part One;

[0045] 320. Part Two;

[0046] 410. First bolt;

[0047] 420. Second bolt;

[0048] A. Angle. Detailed Implementation

[0049] Typical embodiments embodying the features and advantages of this disclosure will be described in detail in the following description. It should be understood that this disclosure can have various variations in different embodiments without departing from the scope of this disclosure, and the descriptions and drawings therein are illustrative in nature and not intended to limit this disclosure.

[0050] In the following description of various exemplary embodiments of this disclosure, reference is made to the accompanying drawings, which form part of this disclosure, and which illustrate by way of example different exemplary structures, systems, and steps that can implement various aspects of this disclosure. It should be understood that other specific embodiments of the components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of this disclosure. Furthermore, while the terms “above,” “between,” “within,” etc., may be used in this specification to describe different exemplary features and elements of this disclosure, these terms are used herein only for convenience, such as the orientation according to the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this disclosure.

[0051] See Figure 1 The diagram illustrates, in a representative manner, the structural schematic of the suspension steering mechanism proposed in this disclosure. In this exemplary embodiment, the suspension steering mechanism proposed in this disclosure is described using an off-highway mining dump truck as an example. It will be readily understood by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below to apply the relevant designs of this disclosure to other types of rail vehicles; these changes will still remain within the scope of the principles of the suspension steering mechanism proposed in this disclosure.

[0052] like Figure 1 As shown, in one embodiment of this disclosure, the suspension steering mechanism includes a steering knuckle 100, a steering arm 200, a mounting key 300, and a connecting member. (See also...) Figures 2 to 5 , Figure 2 The diagram shows a representative three-dimensional exploded view of the suspension steering mechanism; Figure 3 and Figure 4 The diagrams show representative three-dimensional structural schematics of the suspension arm from two different perspectives. Figure 5 The figure shows a representative three-dimensional structural schematic diagram of the assembly key 300. The structure, connection method, and functional relationship of the main components of the suspension steering mechanism proposed in this disclosure will be described in detail below with reference to the above figures.

[0053] like Figure 1 and Figure 2As shown, in one embodiment of this disclosure, the steering knuckle 100 has a first mounting plane 101, and the steering knuckle 100 is provided with a first keyway 102 on the first mounting plane 101. The steering arm 200 has a second mounting plane 201, and the steering arm 200 is provided with a second keyway 203 on the second mounting plane 201. The steering knuckle 100 and the steering arm 200 are assembled via the first mounting plane 101 and the second mounting plane 201, with the first keyway 102 and the second keyway 203 arranged opposite to each other. The second mounting plane 201 has an included angle AA greater than 90° and less than 180° with the steering plane 202 of the suspension steering mechanism (e.g., the upper surface of the second arm 220 of the steering arm 200 shown in the figures). The mounting key 300 is received in the first keyway 102 and the second keyway 203. The connector connects the first mounting plane 101 and the second mounting plane 201. Through the above design, this disclosure optimizes the contact surface structure between the steering knuckle 100 and the steering arm 200 by changing the structure of the steering knuckle 100 and the steering arm 200, and connects the steering knuckle 100 and the steering arm 200 through the assembly key 300 and the connecting parts, thereby solving the stress concentration problem in off-highway mining dump trucks during operation, ensuring the effective connection of the connecting parts, and improving the reliability and stability of the mining truck steering system.

[0054] like Figure 1 As shown, in one embodiment of this disclosure, the included angle AA between the second assembly plane 201 and the steering plane 202 can be 100° to 150°, such as 100°, 120°, 135°, 150°, etc. Through the above design, this disclosure can avoid the included angle AA between the second assembly plane 201 and the steering plane 202 being too small and too close to 90°, while also avoiding the included angle AA being too large. When the included angle AA is too large, in order to achieve the same assembly mating area (e.g., the area of ​​the first assembly plane 101), the assembly structure of the steering knuckle 100 and the steering arm 200 will occupy more space. Therefore, this disclosure can reduce the space occupied. In some embodiments, the included angle AA between the second assembly plane 201 and the steering plane 202 can also be less than 100° or greater than 150°, such as 95°, 155°, etc., and is not limited to this embodiment.

[0055] like Figure 3 and Figure 4As shown, in one embodiment of this disclosure, the steering arm 200 may include a first arm 210 and a second arm 220. The first arm 210 and the second arm 220 are bent together, meaning the cross-section of the steering arm 200 is approximately "L"-shaped (not a right-angle bend, but an obtuse-angle bend). The surface of the first arm 210 facing the steering knuckle 100 is the aforementioned second mounting plane 201, and the second arm 220 is arranged parallel to the aforementioned steering plane 202. Through the above design, this disclosure simplifies the structural complexity of the steering arm 200 and helps to reduce the weight of the steering arm 200, which is beneficial for lightweight design. In some embodiments, the steering arm 200 may also adopt other structural shapes, for example, the steering arm 200 may adopt a block-shaped structure with an approximately triangular cross-section, and is not limited to this embodiment.

[0056] like Figure 3 and Figure 4 As shown, based on the design of the steering arm 200 including a first arm 210 and a second arm 220, in one embodiment of this disclosure, the steering arm 200 may further include a reinforcing rib 230, which is connected to the second arm 220 on the side surface of the first arm 210 facing away from the steering knuckle 100. Through the above design, this disclosure utilizes the reinforcing rib 230 to strengthen the structural strength of the steering arm 200, further improving the structural stability and reliability of the suspension steering mechanism.

[0057] like Figure 3 and Figure 4 As shown, based on the design of the steering arm 200 including the reinforcing rib 230, in one embodiment of this disclosure, a reference plane parallel to the first assembly plane 101 and the second assembly plane 201 is defined. On this reference plane, the orthographic projection of the reinforcing rib 230 and the orthographic projection of the assembly key 300 can at least partially overlap. In other words, the reinforcing rib 230 and the second keyway 203 can be arranged at least partially correspondingly. Through the above design, this disclosure, by specifically selecting the position of the reinforcing rib 230, can further utilize the arrangement of the reinforcing rib 230 to compensate for the impact of the second keyway 203 on the structural strength of the first arm 210, thereby further improving the structural strength of the steering arm 200.

[0058] like Figure 2 and Figure 3As shown, in one embodiment of this disclosure, the second mounting plane 201 of the steering arm 200 may have a first region 2011 and a second region 2012. The first region 2011 is a region that does not overlap with the orthographic projection of the second arm 220 on a reference plane (which is, for example, parallel to the first mounting plane 101 and the second mounting plane 201). The second region 2012 is a region that overlaps with the orthographic projection of the second arm 220. A second keyway 203 is disposed in the first region 2011 of the second mounting plane 201. Based on this, the connecting member can be a bolt, and the bolt includes a first bolt 410 and a second bolt 420. The first bolt 410 is located in the first region 2011, and the second bolt 420 is located in the second region 2012. The first arm 210 is provided with a first through hole 2101 in the first region 2011, and the first mounting plane 101 is provided with a first threaded hole 1011 corresponding to the portion of the first region 2011. The first bolt 410 passes through the first through hole 2101 and is screwed into the first threaded hole 1011. The first arm 210 has a second threaded hole 2102 in the second region 2012, with the second threaded hole 2102 partially located on the second arm 220. The first mounting plane 101 has a second through hole 1012 corresponding to the portion of the second region 2012. A second bolt 420 passes through the second through hole 1012 and is screwed into the second threaded hole 2102. In other words, during assembly, the first bolt 410 passes through the first through hole 2101 from the side of the first arm 210 facing away from the steering knuckle 100 and is screwed into the first threaded hole 1011, while the second bolt 420 passes through the second through hole 1012 from the opposite side and is screwed into the second threaded hole 2102. Through this design, this disclosure can further enhance the connection strength between the steering knuckle 100 and the steering arm 200 using two bolts with bidirectional assembly. In addition, since the second bolt 420 is located in the second arm 220, this disclosure enables the steering arm 200 to be connected to the steering knuckle 100 in the area of ​​its second arm 220, avoiding the problem of excessively long through holes caused by bolts being inserted from the side of the second arm 220, which would affect the structural strength.

[0059] like Figure 2 , Figure 3 and Figure 5 As shown, in one embodiment of this disclosure, the assembly key 300 can be in the shape of a cross, and correspondingly, the first keyway 102 can be in the shape of a cross, and the second keyway 203 can be in the shape of a cross. Through the above design, this disclosure can utilize the cross-shaped key-keyway design to achieve relative positioning of the first assembly plane 101 and the second assembly plane 201 in two perpendicular directions, further improving the assembly effect of the steering knuckle 100 and the steering arm 200, reducing the shear force and other effects on the connecting parts caused by the relative displacement between them, and further preventing the connecting parts from breaking.

[0060] like Figure 5 As shown, based on the "+" shaped design of the assembly key 300, in one embodiment of this disclosure, the assembly key 300 may include a first part 310 and two second parts 320. The first part 310 is arranged, for example, vertically in the figures, and the second parts 320 are arranged, for example, horizontally in the figures. The two second parts 320 are respectively connected to both sides of the first part 310 and arranged opposite to each other, thereby forming a generally "+" shaped structure. The first part 310 and the second part 320 may be fixedly connected, for example, by welding. In some embodiments, the first part 310 and the second part 320 may also be an integral structure, and are not limited to this embodiment. Specifically, in this embodiment, the width of the first part 310 may be greater than the width of the second part 320, that is, the first part 310 can be regarded as the "main key" of the assembly key 300. In some embodiments, depending on different assembly positioning requirements, when the assembly key 300 adopts a "+" shaped design, the width of the first part 310 may be equal to or less than the width of the second part 320.

[0061] like Figure 2 As shown, based on the "+" shaped structure design of the assembly key 300, in one embodiment of this disclosure, the first assembly plane 101 is divided into four third regions by the first keyway 102, which has a "+" shaped structure. In other words, the second assembly plane 201 can also be divided into four regions by the second keyway 203, which has a "+" shaped structure, specifically, for example, the aforementioned first region 2011 is divided into four regions. Based on this, the connector may include a first connector (e.g., the aforementioned first bolt 410), which can be divided into four groups, with the four groups of first connectors respectively located in the four third regions. Through the above design, this disclosure avoids the assembly key 300 by positioning the connector, thus preventing structural interference. Furthermore, when the steering arm 200 includes a reinforcing rib 230 and the reinforcing rib 230 is arranged correspondingly to the second keyway 203, this disclosure can also stagger the connector and the reinforcing rib 230. Meanwhile, for the design of the key-keyway with the "+" shaped structure, this disclosure can optimize the installation position of the connector, ensuring that each small area of ​​the mating surface divided accordingly is equipped with a connector, overcoming the problem of large stress on the connector during turning, extending the life of the connector, and improving safety and reliability.

[0062] like Figure 2As shown, based on the design of four sets of first connecting members arranged in four third regions of the first assembly plane 101, in one embodiment of this disclosure, each set of first connecting members may include at least two (e.g., but not limited to the two shown in the figures) first connecting members. Through the above structural design, this disclosure can further improve the connection strength between the steering knuckle 100 and the steering arm 200. Furthermore, the number of first connecting members in each set can be equal, thereby making the connection effect between the steering knuckle 100 and the steering arm 200 more uniform at each position. In some embodiments, each set of first connecting members may also include only one first connecting member, and is not limited to this embodiment.

[0063] It should be noted that the suspension steering mechanisms shown in the accompanying drawings and described in this specification are merely a few examples among many suspension steering mechanisms capable of employing the principles of this disclosure. It should be clearly understood that the principles of this disclosure are by no means limited to any detail or component of the suspension steering mechanisms shown in the accompanying drawings or described in this specification.

[0064] In summary, the suspension steering mechanism disclosed herein includes a steering knuckle 100, a steering arm 200, a mounting key 300, and a connecting member. The steering knuckle 100 has a first mounting plane 101, and a first keyway 102 is provided on the first mounting plane 101. The steering arm 200 has a second mounting plane 201, and a second keyway 203 is provided on the second mounting plane 201. The steering knuckle 100 and the steering arm 200 are assembled via the first mounting plane 101 and the second mounting plane 201, with the first keyway 102 and the second keyway 203 arranged opposite to each other. An angle A greater than 90° and less than 180° is formed between the second mounting plane 201 and the steering plane 202 of the suspension steering mechanism. The mounting key 300 is accommodated in the first keyway 102 and the second keyway 203. The connecting member connects the first mounting plane 101 and the second mounting plane 201. Through the above design, this disclosure optimizes the contact surface structure between the steering knuckle 100 and the steering arm 200 by changing the structure of the steering knuckle 100 and the steering arm 200, and connects the steering knuckle 100 and the steering arm 200 through the assembly key 300 and the connecting parts, thereby solving the stress concentration problem in off-highway mining dump trucks during operation, ensuring the effective connection of the connecting parts, and improving the reliability and stability of the mining truck steering system.

[0065] Based on the above detailed description of several exemplary embodiments of the suspension steering mechanism proposed in this disclosure, an exemplary embodiment of the off-highway mining dump truck proposed in this disclosure will be described below.

[0066] In one embodiment of this disclosure, the off-highway mining dump truck proposed in this disclosure includes the suspension steering mechanism proposed in this disclosure and described in detail in the above embodiments.

[0067] It should be noted that the off-highway mining dump trucks shown in the accompanying drawings and described in this specification are merely a few examples among many off-highway mining dump trucks capable of employing the principles of this disclosure. It should be clearly understood that the principles of this disclosure are by no means limited to any detail or component of the off-highway mining dump trucks shown in the accompanying drawings or described in this specification.

[0068] In summary, the off-highway mining dump truck proposed in this disclosure solves the stress concentration problem during operation by adopting the suspension steering mechanism proposed in this disclosure, ensuring the effective connection of the connecting parts and improving the reliability and stability of the mine truck steering system.

[0069] The foregoing describes and / or illustrates in detail exemplary embodiments of the suspension steering mechanism and off-highway mining dump truck proposed in this disclosure. However, the embodiments of this disclosure are not limited to the specific embodiments described herein; rather, components and / or steps of each embodiment may be used independently and separately from other components and / or steps described herein. Each component and / or step of one embodiment may also be used in combination with other components and / or steps of other embodiments. In describing the elements / components / etc. described and / or illustrated herein, the terms “a,” “an,” and “the above” are used to indicate the presence of one or more elements / components / etc. The terms “comprising,” “including,” and “having” are used to indicate an open-ended inclusion and mean that additional elements / components / etc. may exist in addition to those listed. Furthermore, the terms “first” and “second” in the claims and specification are used only as illustrative marks and are not intended to limit the numerical scope of the subject matter.

[0070] Although the suspension steering mechanism and off-highway mining dump truck proposed in this disclosure have been described according to different specific embodiments, those skilled in the art will recognize that modifications may be made to the implementation of this disclosure within the spirit and scope of the claims.

Claims

1. A suspension steering mechanism for off-highway mining dump trucks, characterized in that: This includes steering knuckles, steering arms, mounting keys, and connecting parts; The steering knuckle has a first mounting surface, and the first mounting surface is provided with a first keyway; The steering arm has a second mounting plane, and the second mounting plane is provided with a second keyway; the steering knuckle and the steering arm are assembled via the first mounting plane and the second mounting plane, and the first keyway and the second keyway are arranged opposite to each other; the second mounting plane has an angle greater than 90° and less than 180° with the steering plane of the suspension steering mechanism; the steering arm includes a first arm and a second arm, the first arm and the second arm are bent and connected, the side surface of the first arm facing the steering knuckle is the second mounting plane, and the second arm is arranged parallel to the steering plane; The assembly key is accommodated in the first keyway and the second keyway; The connector connects the first assembly plane and the second assembly plane; The assembly key is in the shape of a cross, the first keyway is in the shape of a cross, and the second keyway is in the shape of a cross. The first assembly plane is divided into four third regions by the first keyway. The connector includes a first connector, which is divided into four groups. The four groups of the first connector are respectively arranged in the four third regions.

2. The hanger steering mechanism of claim 1, wherein, The angle between the second assembly plane and the turning plane is 100°~150°.

3. The hanger steering mechanism of claim 1, wherein, The steering arm also includes a reinforcing rib, which is connected to the second arm on the side surface of the first arm facing away from the steering knuckle.

4. The hanger steering mechanism of claim 3, wherein, A reference plane is defined parallel to the first assembly plane and the second assembly plane, on which the orthographic projection of the reinforcing rib at least partially overlaps with the orthographic projection of the assembly key.

5. The hanger steering mechanism of claim 1, wherein, The second assembly plane has a first region and a second region. The first region is the region that does not overlap with the orthographic projection of the second arm on a reference plane, and the second region is the region that overlaps with the orthographic projection of the second arm. The reference plane is parallel to the first assembly plane and the second assembly plane. The second keyway is disposed in the first region. The connecting member is a bolt, which includes a first bolt and a second bolt. The first bolt is located in the first region, and the second bolt is located in the second region. The first arm has a first through hole in the first region, and the first assembly plane has a first threaded hole corresponding to the portion of the first region. The first bolt passes through the first through hole and is screwed into the first threaded hole. The first arm has a second threaded hole in the second region, with the second threaded hole partially located on the second arm. The first assembly plane has a second through hole corresponding to the portion of the second region, and the second bolt passes through the second through hole and is screwed into the second threaded hole.

6. The hanger steering mechanism of claim 1, wherein, Each group of the first connectors includes at least two of the first connectors.

7. An off-highway mining dump truck characterized by, Includes the suspension steering mechanism as described in any one of claims 1 to 6.

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