Double-lug type steering knuckle arm and vehicle

Abstract

The utility model provides a double-lug type steering knuckle arm and a vehicle, and relates to the technical field of vehicle parts, and the double-lug type steering knuckle arm comprises a mounting seat, a connecting rod, a connecting rod and a connecting rod, the knuckle arm main body is used for being connected with a steering driving piece and comprises a steering knuckle arm main body and a rotation stopping piece, the steering knuckle arm main body is of a double-lug-piece structure and is fixedly connected with the mounting base through a smooth connecting structure, the rotation stopping piece comprises a pin shaft and a rotation stopping piece which are fixedly connected, and the pin shaft is connected with the rotation stopping piece through a smooth connecting structure. The pin shaft is matched with the double-lug-piece structure in an inserted mode, the end of the steering driving piece is arranged between two lug pieces of the double-lug-piece structure and is rotationally connected with the pin shaft, and the end, away from the pin shaft, of the rotation stopping piece is pressed to the steering knuckle arm body through a pressing assembly. According to the steering knuckle arm, the overall deformation and fracture risks of the steering knuckle arm can be reduced, and the steering safety of a vehicle in the running process is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and more specifically, to a double-ear steering knuckle arm and a vehicle. Background Technology

[0002] The steering knuckle arm is an important component in the steering system of vehicles such as mining wide-body trucks. It connects the steering knuckle, steering tie rod, and steering cylinder, and bears various forces and impacts from the road surface. Sometimes, the steering knuckle arm needs to be adapted to harsh operating environments.

[0003] Existing steering knuckle arms have certain deficiencies in strength and durability under harsh operating conditions, and are prone to deformation and breakage during long-term use, affecting the vehicle's driving and steering safety. Utility Model Content

[0004] The present invention aims to solve the problems of easy deformation and breakage of existing steering knuckle arms.

[0005] To solve the above problems, in a first aspect, this utility model provides a double-ear steering knuckle arm, comprising:

[0006] Mounting bracket for connection to the steering knuckle;

[0007] The steering knuckle body is used to connect with the steering drive component. The steering knuckle body includes a steering knuckle body and an anti-rotation component. The steering knuckle body has a double-ear structure and is fixedly connected to the mounting base through a smooth connection structure. The anti-rotation component includes a fixedly connected pin and an anti-rotation plate. The pin is inserted into the double-ear structure. The end of the steering drive component is located between the two ears of the double-ear structure and is rotatably connected to the pin. The end of the anti-rotation plate away from the pin is pressed onto the steering knuckle body through a pressing assembly.

[0008] Optionally, the pressing assembly includes a limiting seat, a second bolt group, and a pressure plate. The limiting seats are arranged in groups on the surface of the steering knuckle arm body. A notch is formed between each group of the limiting seats and the steering knuckle arm body. The end of the anti-rotation plate away from the pin is engaged in the notch and fixed by the cooperation of the second bolt group and the pressure plate. Bolt holes are provided between the pressure plate and the limiting seat.

[0009] Optionally, the steering knuckle arm body includes a top lug and a bottom lug, the top lug and the bottom lug are arranged in parallel, the corresponding ends of the top lug and the bottom lug are fixedly connected by a first connecting part, the top lug and the bottom lug are also fixedly connected by a second connecting part, the second connecting part is located at a position different from the corresponding ends, the top lug, the bottom lug and the first connecting part form a "U" shaped space, and the end of the steering drive extends into the "U" shaped space from one side.

[0010] Optionally, the pin and the anti-rotation plate are perpendicular to each other, and the pin is perpendicularly inserted into the top lug and the bottom lug.

[0011] Optionally, the smooth connection structure includes a second reinforcing rib and a third connecting portion. The mounting base is perpendicular to the extending direction of the top lug and the bottom lug. The central axis surfaces of the second reinforcing rib and the third connecting portion are parallel to the extending direction. The second reinforcing rib is fixedly connected to the third connecting portion, and their central axis surfaces are perpendicular to each other. One end of the second reinforcing rib is fixedly connected to the first connecting portion, and the other end is fixedly connected to the mounting base. One end of the third connecting portion is fixedly connected to the first connecting portion, the top lug, and the bottom lug, and the other end is fixedly connected to the mounting base. A first smooth transition structure is provided at the intersection of the first connecting portion, the second reinforcing rib, and the third connecting portion. A second smooth transition structure is provided at the intersection of the second reinforcing rib, the third connecting portion, and the mounting base.

[0012] Optionally, the cross-section of the first connecting part is arc-shaped, and the lowest point of the arc is connected to the second reinforcing rib.

[0013] Optionally, the top ear piece and the bottom ear piece are further fixedly connected by a second connecting portion. A first reinforcing rib and a third reinforcing rib are also provided between the top ear piece and the bottom ear piece. The first reinforcing rib extends from the top ear piece to the bottom ear piece and is fixedly connected to the top ear piece, the bottom ear piece, and the second connecting portion respectively through a third smooth transition structure. The third reinforcing rib extends from the top ear piece to the bottom ear piece and is fixedly connected to the top ear piece, the bottom ear piece, and the first connecting portion respectively through a fourth smooth transition structure.

[0014] Optionally, the width of the middle part of both the first reinforcing rib and the third reinforcing rib is smaller than the width of the two ends.

[0015] Optionally, the mounting base is fixedly connected to the steering knuckle by a first bolt group, and a connecting key is integrally provided on the side of the mounting base away from the steering knuckle arm body, and a keyway that mates with the connecting key is provided on the steering knuckle.

[0016] The beneficial effects of the dual-ear steering knuckle arm provided by this utility model are as follows: The main body of the steering knuckle arm is a dual-ear structure, with a pin inserted into the dual-ear structure. The end of the steering drive component extends between the two ear pieces and is rotatably connected to the main body of the knuckle arm through the pin. Compared with the dual-ear structure at the end of the steering drive component in the prior art, the dual-ear structure in this utility model increases the strength and rigidity of the ear, and can better withstand the tensile and impact forces from the steering drive component, reducing the risk of deformation and breakage of the steering knuckle arm as a whole. Furthermore, the main body of the steering knuckle arm is fixedly connected to the mounting base through a smooth connection structure. When the smooth connection structure is connected to the main body of the steering knuckle arm and the mounting base, the connection position can be achieved by, for example, an arc-shaped corner structure, which can reduce stress concentration, improve the overall strength of the steering knuckle arm, and extend its service life. In addition, the anti-rotation component adopts a design of a pin and an anti-rotation plate. The anti-rotation plate is pressed onto the main body of the steering knuckle arm through a pressing assembly to prevent rotation between the pin and the main body of the knuckle arm, improve the steering stability of the vehicle during steering, and thus improve the steering safety of the vehicle during driving.

[0017] On the other hand, the present invention provides a vehicle including a double-ear steering knuckle arm as described in any of the above claims. The double-ear steering knuckle arm is used for steering support of the wheel. The beneficial effects of the double-ear steering knuckle arm compared to the prior art are the same as those of the double-ear steering knuckle arm compared to the prior art, and will not be repeated here. Attached Figure Description

[0018] Figure 1 A schematic diagram of the installation of a double-ear steering knuckle arm according to an embodiment of the present invention is shown;

[0019] Figure 2 It shows Figure 1 Enlarged schematic diagram of the double-ear steering knuckle arm at point A;

[0020] Figure 3 This invention illustrates the structure of a dual-ear steering knuckle arm in an embodiment of the present invention. Figure 1 ;

[0021] Figure 4 This invention illustrates the structure of a dual-ear steering knuckle arm in an embodiment of the present invention. Figure 2 ;

[0022] Figure 5 This invention illustrates the structure of a dual-ear steering knuckle arm in an embodiment of the present invention. Figure 3 .

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Steering knuckle; 2. Steering knuckle arm body; 21. Top lug; 22. Bottom lug; 3. Steering drive component; 31. Steering cylinder; 32. Steering tie rod; 4. Limit seat; 5. First bolt group; 6. Second bolt group; 7. Pressure plate; 8. Anti-rotation component; 81. Pin; 82. Anti-rotation plate; 9. Mounting seat; 10. Connecting key; 11. First connecting part; 12. Second connecting part; 13. First reinforcing rib; 14. Second reinforcing rib; 15. Third connecting part; 16. Keyway; 17. Third reinforcing rib. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative embodiment of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0027] In the accompanying drawings, the X-axis represents the front-to-back direction, the Y-axis represents the left-to-right direction, and the Z-axis represents the up-to-down direction. It should be noted that the aforementioned representations of the X, Y, and Z axes are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Reference Figure 1 and Figure 2 As shown, in one aspect, this utility model embodiment proposes a double-ear steering knuckle arm, including: a mounting base 9 for connecting to a steering knuckle 1;

[0029] The steering knuckle body is used to connect with the steering drive component 3. The steering knuckle body includes a steering knuckle body 2 and an anti-rotation component 8. The steering knuckle body 2 has a double-ear structure and is fixedly connected to the mounting base 9 through a smooth connection structure. The anti-rotation component 8 includes a fixedly connected pin 81 and an anti-rotation plate 82. The pin 81 is inserted into the double-ear structure. The end of the steering drive component 3 is located between the two ears of the double-ear structure and is rotatably connected to the pin 81. The end of the anti-rotation plate 82 away from the pin 81 is pressed onto the steering knuckle body 2 through a pressing assembly.

[0030] Specifically, the knuckle arm body can be used to connect the steering drive component 3 to the vehicle wheel (steering knuckle 1), providing steering support for the vehicle. The steering drive component 3 generally includes a steering cylinder 31 and a steering tie rod 32, which work in coordination to ensure precise vehicle steering. The double-eared steering knuckle arm body 2 and the mounting base 9 together form the knuckle arm body, and the two are connected by a smooth connection structure. The smooth connection structure acts as a transfer connection structure, and when it is connected to the steering knuckle arm body 2 and the mounting base 9 respectively, an arc-shaped corner structure can be used at the connection position. The current smooth transition connection avoids the use of traditional straight cross-section connection. The anti-rotation component 8, as the component connecting the steering drive component 3 and the knuckle body, includes a pin 81 and an anti-rotation plate 82. Functionally, it ensures that the steering drive component 3 can rotate around the pin 81 to drive the wheel to turn around the steering knuckle. In order to prevent the rotation of the steering drive component 3 from driving the pin 81, the anti-rotation plate 82 is fixedly connected to the pin 81, and a pressing assembly is used to fix the anti-rotation plate 82 relative to the steering knuckle body 2, that is, the pin 81 is fixed, so the pin 81 and the knuckle body cannot rotate relative to each other.

[0031] In this embodiment, the steering knuckle arm body 2 has a double-ear structure, with a pin 81 inserted into the double-ear structure. The end of the steering drive component 3 extends between the two ears and is rotatably connected to the steering knuckle arm body via the pin 81. Compared to the existing technology where the end of the steering drive component 3 uses a double-ear structure, the double-ear structure in this invention increases the strength and rigidity of the ears, better withstands the tensile and impact forces from the steering drive component 3, and reduces the risk of deformation and breakage of the steering knuckle arm as a whole. Furthermore, the steering knuckle arm body 2 is connected to the steering knuckle arm body via a smooth connection structure. When the mounting base 9 is fixedly connected to the steering knuckle arm body 2 and the mounting base 9 respectively, the connection can be achieved by means of an arc-shaped corner structure at the connection position, which can reduce stress concentration, improve the overall strength of the steering knuckle arm, and extend its service life. Furthermore, the anti-rotation component 8 adopts the design of a pin 81 and an anti-rotation plate 82. The anti-rotation plate 82 is pressed onto the steering knuckle arm body 2 by a pressing assembly to prevent rotation between the pin 81 and the knuckle arm body, improve the steering stability of the vehicle when turning, and thus improve the steering safety of the vehicle when driving.

[0032] like Figure 2 and Figure 3 As shown, in an optional embodiment of this utility model, the pressing assembly includes a limiting seat 4, a second bolt group 6, and a pressure plate 7. The limiting seats 4 are arranged in groups on the surface of the steering knuckle arm body 2. A notch is formed between each group of the limiting seats 4 and the steering knuckle arm body 2. The end of the anti-rotation plate 82 away from the pin 81 is engaged in the notch and fixed by the cooperation of the second bolt group 6 and the pressure plate 7. Bolt holes are provided between the pressure plate 7 and the limiting seat 4.

[0033] Specifically, each set of limiting seats 4 includes two parallel limiting seats 4. The two parallel limiting seats 4 can be fixed side by side to the surface of the steering knuckle arm body 2 and form a notch between them. The size of this notch is exactly matched with the width and thickness of the anti-rotation plate 82 and is configured to be an interference fit, so that the end of the anti-rotation plate 82 away from the pin 81 is locked in the notch and the pressure plate 7 is covered on the limiting seat 4. Then, the two ends of the pressure plate 7 are fixed to the two limiting seats 4 by the second bolt group 6, thereby achieving the pressing and fixing of the limiting seats 4.

[0034] Preferably, the limiting seat 4 is rectangular, the notch is also rectangular, the end of the anti-rotation piece 82 away from the pin 81 is also rectangular, and the end of the anti-rotation piece 82 near the pin 81 is annular, so as to achieve circumferential fixation with the pin 81.

[0035] When the steering drive component 3 includes a steering cylinder 31 and a steering tie rod 32, the corresponding anti-rotation components 8 of the steering cylinder 31 and the steering tie rod 32 are all prevented from rotating by a pressing assembly.

[0036] In this optional embodiment, the pressing assembly is used to fix the anti-rotation piece 8 (the anti-rotation plate 82) relative to the steering knuckle arm body 2, preventing relative rotation between the pin 81 and the steering knuckle arm body 2 due to torque.

[0037] like Figure 3 and Figure 4 As shown, in an optional embodiment of this utility model, the steering knuckle arm body 2 includes a top lug 21 and a bottom lug 22, which are arranged in parallel. The corresponding ends of the top lug 21 and the bottom lug 22 are fixedly connected by a first connecting part 11. The lower and upper surfaces of the top lug 21 and the bottom lug 22 are also fixedly connected by a second connecting part 12, which is located at a position different from the corresponding ends. A "U"-shaped space is formed between the top lug 21, the bottom lug 22 and the first connecting part 11. The end of the steering drive 3 extends into the "U"-shaped space from one side.

[0038] Specifically, when the steering drive component 3 includes a steering cylinder 31 and a steering tie rod 32, both extend into the "U"-shaped space from the same side to complete the movable connection with the pin 81. The corresponding ends of the top lug 21 and the bottom lug 22 are fixedly connected at intervals through the first connecting part 11 and the second connecting part 12 to realize multi-point support between the top lug 21 and the bottom lug 22, and form sufficient space between the multi-point support to allow for the installation of the steering cylinder 31 and the steering tie rod 32 and their movement after installation. The limiting seat 4 can be provided on the surface of the top lug 21.

[0039] In this optional embodiment, compared with the prior art where the end of the steering drive component 3 adopts a double-ear structure, this embodiment makes corresponding improvements. The steering knuckle arm body 2 is configured with double ears, and forms multi-point support through the first connecting part 11 and the second connecting part 12 respectively. This makes the double-ear structure have a large cross-sectional moment of inertia, which can greatly improve bending resistance, reduce deformation, and increase stiffness to meet the requirements of special environments such as mining areas.

[0040] like Figure 2 As shown, in an optional embodiment of the present invention, the pin 81 and the anti-rotation piece 82 are perpendicular to each other, and the pin 81 is vertically inserted into the top ear piece 21 and the bottom ear piece 22.

[0041] Specifically, with the above vertical structure design, after the pin 81 is vertically inserted from the insertion hole at the top of the top ear 21 into the insertion hole at the bottom of the bottom ear 22, the anti-rotation piece 82 can remain in contact with the top surface of the top ear 21.

[0042] In this optional embodiment, the vertical structure design not only facilitates the installation of the pin 81 and enables the pin 81 to be inserted into the double ear structure, but also allows the anti-rotation piece 82 to remain in contact with the top surface of the top ear piece 21, improving the pressing effect after the anti-rotation piece 82 is pressed and fixed.

[0043] like Figure 3 , Figure 4 and Figure 5 As shown, in an optional embodiment of this utility model, the smooth connection structure includes a second reinforcing rib 14 and a third connecting portion 15. The mounting base 9 is perpendicular to the extending direction of the top ear piece 21 and the bottom ear piece 22. The central axis surfaces of the second reinforcing rib 14 and the third connecting portion 15 are parallel to the extending direction, respectively. The second reinforcing rib 14 and the third connecting portion 15 are fixedly connected, and their central axis surfaces are perpendicular to each other. One end of the second reinforcing rib 14 is fixedly connected to the first connecting portion 11, and the other end is fixedly connected to the mounting base 9. One end of the third connecting portion 15 is fixedly connected to the first connecting portion 11, the top ear piece 21, and the bottom ear piece 22, and the other end is fixedly connected to the mounting base 9. A first smooth transition structure is provided at the intersection of the first connecting portion 11, the second reinforcing rib 14, and the third connecting portion 15, and a second smooth transition structure is provided at the intersection of the second reinforcing rib 14, the third connecting portion 15, and the mounting base 9.

[0044] Specifically, the second reinforcing rib 14 and the third connecting part 15 are fixedly connected and their central planes are perpendicular to each other. This design not only helps to improve the stability of the structure, but also reduces stress concentration. One end of the second reinforcing rib 14 is fixedly connected to the first connecting part 11, and the other end is fixedly connected to the mounting base 9. One end of the third connecting part 15 is also fixedly connected to the first connecting part 11, the top lug 21 and the bottom lug 22, and the other end is also fixedly connected to the mounting base 9. This connection method effectively forms the integrity between multiple components, which helps to withstand multi-directional forces. The mounting base 9 is perpendicular to the end extension direction of the top lug 21 and the bottom lug 22. Due to the smooth transition structure of the second reinforcing rib 14, the third connecting part 15 and the mounting base 9, the transition of these key components is smoother, thereby improving the deformation resistance of the structure. Through this geometry, the uniform distribution of forces between the various connecting components can be effectively achieved.

[0045] From the perspective of processing technology, the main body 2 of the steering knuckle arm is made by integral casting. The smooth transition structure can improve the fluidity of molten iron during the casting process and make the material more uniform.

[0046] In this optional embodiment, the design of the above connection structure helps to reduce stress concentration, reduce the risk of material fatigue, improve overall toughness and flexibility, better resist deformation caused by external forces, enhance the overall stability and reliability of the steering knuckle arm, and improve the overall strength of the steering knuckle arm.

[0047] like Figure 3 As shown, in an optional embodiment of the present invention, the cross-section of the first connecting part 11 is arc-shaped, and the lowest point of its arc is connected to the second reinforcing rib 14.

[0048] Specifically, the first connecting part 11 has an arc-shaped cross section. This design can effectively disperse the force and reduce stress concentration during the deformation process. When it is connected to the second reinforcing rib 14 at the lowest point of the arc, the arc-shaped cross section can form a natural stress transmission path, so that the force can be gradually dispersed to the surrounding material through the arc structure.

[0049] In this optional embodiment, the arc-shaped structure facilitates a smooth transition connection, which can improve load-bearing capacity and better withstand bending and compressive forces, giving it an advantage over traditional straight sections.

[0050] like Figure 3 , Figure 4 and Figure 5As shown, in an optional embodiment of the present invention, the top ear piece 21 and the bottom ear piece 22 are further fixedly connected by a second connecting portion 12. A first reinforcing rib 13 and a third reinforcing rib 17 are also provided between the top ear piece 21 and the bottom ear piece 22. The first reinforcing rib 13 extends from the top ear piece 21 to the bottom ear piece 22 and is fixedly connected to the top ear piece 21, the bottom ear piece 22 and the second connecting portion 12 respectively through a third smooth transition structure. The third reinforcing rib 17 extends from the top ear piece 21 to the bottom ear piece 22 and is fixedly connected to the top ear piece 21, the bottom ear piece 22 and the first connecting portion 11 respectively through a fourth smooth transition structure.

[0051] Specifically, the first reinforcing rib 13 is used to strengthen the connection between the second connecting part 12 and the top ear piece 21 and the bottom ear piece 22, and to achieve a covering extension from the top ear piece 21 to the bottom ear piece 22. The smooth transition structure exists at the connection points of the three parts, that is, the connection points adopt a smooth transition to avoid forming right angles. The first reinforcing rib 13 is distributed on both sides of the second connecting part 12.

[0052] Similarly, the third reinforcing rib 17 is used to strengthen the connection between the second connecting part 12 and the top ear piece 21 and the bottom ear piece 22, and to achieve a covering extension from the top ear piece 21 to the bottom ear piece 22. The smooth transition structure exists at the connection points of the three parts, that is, the connection points adopt a smooth transition to avoid forming right angles.

[0053] The first and fourth smooth transition structures mentioned in this utility model do not have any essential structural differences. They may have size differences at different positions. At the corner structure, an arc or rounded corner transition can be used. They can be obtained by integral casting during processing.

[0054] In this optional embodiment, the first reinforcing rib 13 and the third reinforcing rib 17 can themselves play the role of strengthening the connection, so as to support the top ear plate 21 and the bottom ear plate 22 to form a deformation-resistant double ear plate structure. The smooth transition structure can not only improve the fluidity of molten iron during the casting process and make the material more uniform, but also reduce stress concentration and improve the overall strength of the steering knuckle arm.

[0055] like Figure 3 As shown, in an optional embodiment of this utility model, the width of the middle part of the first reinforcing rib 13 and the third reinforcing rib 17 is smaller than the width of the two ends.

[0056] Specifically, the first reinforcing rib 13 is used to strengthen the structure of the first connecting part 11 when connecting the top ear piece 21 and the bottom ear piece 22. When all three are fixedly connected, the width of the connection at both ends is greater than the width of the connection in the middle. The third reinforcing rib 17 is used to strengthen the structure of the second connecting part 12 when connecting the top ear piece 21 and the bottom ear piece 22. When all three are fixedly connected, the width of the connection at both ends is greater than the width of the connection in the middle. That is, from the perspective of the Y-axis, both the first reinforcing rib 13 and the third reinforcing rib 17 are arc-shaped.

[0057] It should be noted that when the steering drive component 3 includes a steering cylinder 31 and a steering tie rod 32, the connection positions of the second connecting part 12 and the first reinforcing rib 13 on the top lug 21 and the bottom lug 22 separate the installation positions of the steering cylinder 31 and the steering tie rod 32, and prevent the connection between the steering cylinder 31 and the steering tie rod 32 corresponding to the two sides of the steering knuckle arm body 2 from easily deforming.

[0058] In this optional embodiment, since both the top lug 21 and the bottom lug 22 are the main load-bearing components, the above-mentioned reinforcing rib structure improves the bending resistance of the steering knuckle arm body 2 and enhances its rigidity.

[0059] like Figure 2 and Figure 3 As shown, in an optional embodiment of the present utility model, the mounting base 9 is fixedly connected to the steering knuckle 1 by the first bolt group 5, and the mounting base 9 is also integrally provided with a connecting key 10 on the side away from the steering knuckle arm body 2, and the steering knuckle 1 is provided with a keyway 16 that cooperates with the connecting key 10.

[0060] Specifically, the first bolt group 5 has multiple bolts evenly distributed on the side of the mounting base 9. The mounting base 9 and the steering knuckle 1 are provided with corresponding bolt holes. The first bolt group 5 connects the mounting base 9 and the steering knuckle 1. During installation, the connecting key 10 is aligned with the keyway 16 and inserted to make them interference fit. Then, the mounting base 9 and the steering knuckle 1 are connected by the first bolt group 5. The connecting key 10 can be a flat key, and the corresponding keyway 16 is adapted to it.

[0061] In this optional embodiment, a connecting key structure is used to connect the steering knuckle arm body 2 and the steering knuckle 1, which can overcome the shear force between the two and protect the connecting bolts from shear force.

[0062] like Figure 1 As shown, this utility model also provides a vehicle, including a double-ear steering knuckle arm as described in the above embodiments, wherein the double-ear steering knuckle arm is used for steering support of the wheel.

[0063] Vehicles employing the double-ear steering knuckle arm as described in the foregoing embodiments, such as wide-body mining vehicles, can achieve stable connection and steering movement of the steering system, meeting the requirements of special environments such as mining areas.

[0064] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the present invention.

[0065] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A double-ear steering knuckle arm, characterized in that, include: Mounting bracket (9) for connection with steering knuckle (1); The main body of the steering knuckle arm is used to connect with the steering drive component (3). The main body of the steering knuckle arm includes a steering knuckle arm body (2) and an anti-rotation component (8). The steering knuckle arm body (2) is a double-ear structure and is fixedly connected to the mounting base (9) through a smooth connection structure. The anti-rotation component (8) includes a fixedly connected pin (81) and an anti-rotation plate (82). The pin (81) is inserted into the double-ear structure. The end of the steering drive component (3) is located between the two ears of the double-ear structure and is rotatably connected to the pin (81). The end of the anti-rotation plate (82) away from the pin (81) is pressed onto the steering knuckle arm body (2) through a pressing assembly.

2. The dual-ear steering knuckle arm according to claim 1, characterized in that, The pressing assembly includes a limiting seat (4), a second bolt group (6), and a pressure plate (7). The limiting seats (4) are arranged in groups on the surface of the steering knuckle arm body (2). A notch is formed between each group of the limiting seats (4) and the steering knuckle arm body (2). The anti-rotation plate (82) is engaged in the notch at one end away from the pin (81) and is fixed by the cooperation of the second bolt group (6) and the pressure plate (7). Bolt holes are provided between the pressure plate (7) and the limiting seat (4).

3. The dual-ear steering knuckle arm according to claim 1, characterized in that, The steering knuckle arm body (2) includes a top lug (21) and a bottom lug (22). The top lug (21) and the bottom lug (22) are arranged in parallel. The corresponding ends of the top lug (21) and the bottom lug (22) are fixedly connected by a first connecting part (11). The top lug (21) and the bottom lug (22) are also fixedly connected by a second connecting part (12). The second connecting part (12) and the first connecting part (11) are spaced apart. A "U" shaped space is formed between the top lug (21), the bottom lug (22) and the first connecting part (11). The end of the steering drive (3) extends into the "U" shaped space from one side.

4. The dual-ear steering knuckle arm according to claim 3, characterized in that, The pin (81) and the anti-rotation piece (82) are perpendicular to each other. The pin (81) is vertically inserted into the top ear piece (21) and the bottom ear piece (22). The top ear piece (21) and the bottom ear piece (22) have corresponding insertion holes.

5. The dual-ear steering knuckle arm according to claim 3, characterized in that, The smooth connection structure includes a second reinforcing rib (14) and a third connecting part (15). The mounting base (9) is perpendicular to the extending direction of the top ear piece (21) and the bottom ear piece (22). The central axis surfaces of the second reinforcing rib (14) and the third connecting part (15) are parallel to the extending direction, respectively. The second reinforcing rib (14) and the third connecting part (15) are fixedly connected, and their central axis surfaces are perpendicular to each other. One end of the second reinforcing rib (14) is fixedly connected to the first connecting part (11), and the other end is fixedly connected to the mounting base (9). The mounting base (9) is fixedly connected. One end of the third connecting part (15) is fixedly connected to the first connecting part (11), the top ear (21) and the bottom ear (22), and the other end is fixedly connected to the mounting base (9). A first smooth transition structure is provided at the intersection of the first connecting part (11), the second reinforcing rib (14) and the third connecting part (15), and a second smooth transition structure is provided at the intersection of the second reinforcing rib (14), the third connecting part (15) and the mounting base (9).

6. The dual-ear steering knuckle arm according to claim 1 or 5, characterized in that, The first connecting part (11) has an arc-shaped cross section, and the lowest point of its arc is connected to the second reinforcing rib (14).

7. The double-ear steering knuckle arm according to any one of claims 3-5, characterized in that, A first reinforcing rib (13) and a third reinforcing rib (17) are provided between the top ear piece (21) and the bottom ear piece (22). The first reinforcing rib (13) extends from the top ear piece (21) to the bottom ear piece (22) and is fixedly connected to the top ear piece (21), the bottom ear piece (22) and the second connecting part (12) respectively through a third smooth transition structure. The third reinforcing rib (17) extends from the top ear piece (21) to the bottom ear piece (22) and is fixedly connected to the top ear piece (21), the bottom ear piece (22) and the first connecting part (11) respectively through a fourth smooth transition structure.

8. The dual-ear steering knuckle arm according to claim 7, characterized in that, The width of the middle part of the first reinforcing rib (13) and the third reinforcing rib (17) is smaller than the width at both ends.

9. The double-ear steering knuckle arm according to any one of claims 1-4, characterized in that, The mounting base (9) is fixedly connected to the steering knuckle (1) by the first bolt group (5), and the mounting base (9) is also integrally provided with a connecting key (10) on the side away from the steering knuckle arm body (2), and the steering knuckle (1) is provided with a keyway (16) that cooperates with the connecting key (10).

10. A vehicle, characterized in that, Including the dual-ear steering knuckle arm as described in any one of claims 1-9.

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