A new type of steering limiting device for automobile steering knuckle

Abstract

The utility model relates to a kind of novel automobile steering knuckle's steering limiting device, belong to the technical field of automobile parts.It includes bridge pipe, wheel, steering knuckle, long cross tie rod, short cross tie rod, wheel is located at the both ends of bridge pipe, long cross tie rod, short cross tie rod are connected with wheel by steering knuckle, short cross tie rod is located at the side of bridge pipe, bridge pipe is equipped with the limiting assembly corresponding with steering knuckle, limiting assembly includes limit plate, limiting bolt, limit plate is fixedly connected between bridge pipe, limiting bolt is screwed between limit plate and limit plate and is connected threadedly.The utility model provides a kind of novel automobile steering knuckle's steering limiting device, its rotating range of steering knuckle is effectively limited by limiting assembly, improves the security and stability of vehicle steering.Meanwhile limiting bolt can be flexibly adjusted to adapt to the demand of different vehicle models, simplifies assembly process and reduces difficulty.In addition, the setting of buffer part reduces the wear of limiting bolt, improves durability.

Description

Technical Field

[0001] This utility model relates to a novel steering limit device for automotive steering knuckles, belonging to the field of automotive parts technology. Background Technology

[0002] The front suspension of existing microcars generally adopts a solid axle structure. The steering of the wheels is achieved by the driver turning the steering wheel, which drives the lower axle to drive the steering gear pinion shaft to rotate, thereby causing the rack to move laterally. Then, the short tie rod of the solid axle drives one side of the wheel, and the steering knuckle and long tie rod simultaneously drive the other side of the wheel to rotate in the same direction.

[0003] The steering system adapted to this type of solid axle is often a rack and pinion steering gear with single-sided output. Under normal circumstances, when the steering gear moves to the end in one direction, it reaches the wheel's turning angle limit, that is, the maximum steering angle of the wheel.

[0004] In actual assembled vehicles, the steering angle of the wheels is often too large, causing interference between the wheels and the chassis or wheel arches. This interference not only affects the vehicle's steering performance but may also damage vehicle components and reduce the vehicle's service life. Utility Model Content

[0005] This invention provides a novel steering limit device for automotive steering knuckles to solve the problem in the prior art where interference between the wheel and the frame or wheel cover causes damage to vehicle components.

[0006] This utility model provides a novel steering limiting device for an automotive steering knuckle, comprising an axle tube, a wheel, a steering knuckle, a long tie rod, and a short tie rod. The wheel is located at both ends of the axle tube. The long tie rod and the short tie rod are connected to the wheel through the steering knuckle. The short tie rod is located on one side of the axle tube. The axle tube is provided with a limiting component corresponding to the steering knuckle. The limiting component includes a limiting plate and a limiting bolt. The limiting plate is fixedly connected to the axle tube, and the limiting bolt is threaded through the limiting plate and connected to it.

[0007] Preferably, the limiting component is located on the axle tube near the steering knuckle end.

[0008] Preferably, the limiting bolt is provided with a corresponding nut.

[0009] Preferably, the limiting bolt is provided with an adjustment scale corresponding to the steering knuckle.

[0010] Preferably, there are multiple adjustment scales, which are circumferentially distributed on the limiting bolt.

[0011] Preferably, the adjustment scale is spirally distributed on the limiting bolt, and the limiting bolt has a groove corresponding to the adjustment scale, with the adjustment scale located inside the groove.

[0012] Preferably, the head of the limiting bolt is provided with a buffer portion, the buffer portion including a silicone gasket and an elastic component, the silicone gasket being located at the head of the limiting bolt and connected to the elastic component.

[0013] Preferably, the silicone gasket has an internal hexagonal notch corresponding to the limiting bolt.

[0014] Preferably, the head of the limiting bolt is provided with an annular groove corresponding to the silicone gasket, the elastic component is located inside the annular groove, the bottom of the silicone gasket is located inside the annular groove and in contact with the elastic component, and the silicone gasket and the annular groove are slidably connected.

[0015] Preferably, the elastic component includes a plurality of leaf springs, which are circumferentially distributed within an annular groove.

[0016] The beneficial effects of this utility model are:

[0017] This invention provides a novel steering limit device for automotive steering knuckles, which effectively restricts the rotation range of the steering knuckle through a limiting component. When the steering knuckle rotates to its limit position, the limiting bolt contacts the steering knuckle, thereby preventing the wheel from continuing to rotate and avoiding interference between the wheel's excessive steering angle and the chassis or wheel arch. This significantly improves the safety and stability of the vehicle during steering. The limiting bolt is equipped with a nut; by rotating the limiting bolt and securing it with the nut, the distance between the limiting bolt and the steering knuckle can be easily adjusted, thus flexibly controlling the steering knuckle's angle rotation range. It meets the needs of different vehicle models or wheel arch space requirements, improving the product's versatility and adaptability. The limiting component has a simple structural design and is easy to assemble. During assembly, the limiting plate is simply fixed to the axle tube, and the limiting setting is completed by rotating and fixing the limiting bolts. This simplifies the assembly process, reduces assembly difficulty, and improves production efficiency. A buffer section is provided at the head of the limiting bolt, effectively reducing hard contact between the bolt head and the steering knuckle, thereby significantly reducing wear on the bolt head and improving its durability and service life. Adjustment scales are provided on the limiting bolts, located inside grooves to avoid wear, and are circumferentially distributed for multi-angle reading. By observing the values ​​on the adjustment scales, assembly personnel can accurately determine the gap between the limiting bolt and the steering knuckle, thus improving the accuracy and efficiency of adjustment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a novel steering knuckle steering limit device of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall structure of a novel automotive steering knuckle steering limiting device from another angle.

[0020] Figure 3 This is a partial structural schematic diagram of a novel steering knuckle steering limit device according to the present invention.

[0021] Figure 4 This is a schematic diagram of another part of the structure of a new type of automotive steering knuckle steering limiting device according to this utility model.

[0022] Figure 5 This is a schematic diagram of the limit bolt structure of a novel steering limit device for an automobile steering knuckle according to this utility model.

[0023] Figure 6 This is an exploded view of the limiting bolt structure of a novel steering limiting device for an automotive steering knuckle, according to this utility model.

[0024] Figure 7 This is another exploded structural diagram of the limiting bolt of a novel steering limiting device for an automobile steering knuckle according to this utility model.

[0025] In the diagram: 1. Axle tube, 2. Wheel, 3. Steering knuckle, 4. Long tie rod, 5. Short tie rod, 6. Limiting assembly, 61. Limiting plate, 62. Limiting bolt, 621. Nut, 622. Adjustment scale, 623. Annular groove, 7. Buffer part, 71. Silicone gasket, 711. Socket hexagon notch, 72. Elastic component. Detailed Implementation

[0026] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] Example 1: This utility model provides a novel steering limit device for an automobile steering knuckle, which includes an axle tube 1, a wheel 2, a steering knuckle 3, a long tie rod 4, and a short tie rod 5. The wheel 2 is located at both ends of the axle tube 1. The short tie rod 5 drives the wheel 2 to rotate through the steering knuckle 3. The long tie rod 4 and the short tie rod 5 cooperate to drive the wheel 2 on the same side to rotate synchronously. The long tie rod 4 is connected to the steering knuckle 3. The axle tube 1 is provided with a limiting component 6 corresponding to the steering knuckle 3. The limiting component 6 includes a limiting plate 61 and a limiting bolt 62. The limiting plate 61 is fixedly connected to the axle tube 1. The limiting bolt 62 passes through the limiting plate 61 and is threaded between the limiting plate 61. The limiting bolt 62 is provided with a corresponding nut 621. The short tie rod 5 rotates around the axle tube 1 through the steering knuckle 3. The limiting component 6 is located on the axle tube 1 near the steering knuckle 3.

[0028] When in use, turning the steering wheel drives the axle tube 1, which in turn drives the steering gear. The short tie rod 5 moves, causing one side wheel 2 to rotate for angle adjustment. During its movement, the short tie rod 5 simultaneously drives the steering knuckle 3 to rotate around the axle tube 1. The steering knuckle 3 then drives the long tie rod 4, which in turn drives the other side wheel 2 to rotate synchronously. As the short tie rod 5 drives the steering knuckle 3 to rotate, when it reaches its limit position, the steering knuckle 3 contacts the limit bolt 62 in the limit assembly 6. The limit bolt 62 limits the steering knuckle 3. During assembly, the limit bolt 62 can be rotated and fixed with the nut 621 to adjust the distance between the limit bolt 62 and the steering knuckle 3, thereby adjusting the angle rotation range of the steering knuckle 3. This allows for flexible control of the steering angle range, adapting to different vehicle models or wheel arch space requirements and preventing excessive wheel steering angles from interfering with the frame or wheel arch.

[0029] Compared with existing technologies, the limiting component 6 effectively restricts the rotation range of the steering knuckle 3. When the short tie rod 5 drives the steering knuckle 3 to its limit position, the steering knuckle 3 will contact the limiting bolt 62, thereby preventing the wheel 2 from continuing to rotate and avoiding interference with the frame or wheel arch due to excessive wheel steering angle. This improves the safety and stability of the vehicle during steering. The limiting bolt 62 is equipped with a nut 621. By rotating the limiting bolt 62 and fixing it with the nut 621, the distance between the limiting bolt 62 and the steering knuckle 3 can be easily adjusted. This allows the angle rotation range of the steering knuckle 3 to be flexibly adjusted according to actual needs, adapting to the requirements of different vehicle models or wheel arch space. The limiting component 6 has a simple structure and is easy to assemble. During assembly, simply fix the limiting plate 61 to the axle tube 1, and then complete the limiting setting by rotating and fixing the limiting bolt 62. This simplifies the assembly process, reduces assembly difficulty, and facilitates subsequent debugging and maintenance.

[0030] Example 2: In the above examples, during the process of adjusting the steering angle of the steering knuckle 3, the assembler needs to repeatedly try and fail or judge the rotation angle corresponding to the gap by feel. Moreover, each time the wheel cover is disassembled and installed to verify the angle, it is easy to cause secondary damage such as wheel hub scratches. Therefore, this application example optimizes the limit bolt 62 based on the above examples.

[0031] In this embodiment, the limiting bolt 62 is provided with an adjustment scale 622 corresponding to the steering knuckle 3. The adjustment scale 622 consists of multiple scales arranged in a circle on the limiting bolt 62. The adjustment scale 622 is spirally distributed on the limiting bolt 62. The limiting bolt 62 is provided with a groove corresponding to the adjustment scale 622. The adjustment scale 622 is located inside the groove.

[0032] When adjusting the rotation angle of the steering knuckle 3 by rotating the limit bolt 62, the value on the adjustment scale 622 can be observed to determine the gap between the limit bolt 62 and the steering knuckle 3 corresponding to the limit angle of the steering knuckle 3. This avoids the need for assembly personnel to make multiple adjustments or estimate adjustments based on experience, thus reducing the manpower and time costs in the assembly process. The adjustment scale 622 is located inside the groove, which can effectively avoid the problem of unclear adjustment scale 622 after use due to wear. Furthermore, the circumferential distribution of the adjustment scale 622 can effectively help assembly personnel to clearly read the values ​​from multiple angles.

[0033] Compared to existing technologies, by observing the values ​​on the adjustment scale 622, assembly personnel can accurately determine the gap between the limit bolt 62 and the steering knuckle 3, and thus determine the limiting angle of the steering knuckle 3. This avoids the need for assembly personnel to make multiple trial and error attempts or estimate adjustments by feel, greatly improving the accuracy of adjustment. Assembly personnel can quickly find the required limiting angle without repeated adjustments or complex calculations. This significantly saves manpower and time costs in the assembly process, improving production efficiency. The adjustment scale 622 is located inside the groove on the limit bolt 62, effectively protecting the scale from wear and contamination from the external environment. Even during use, the adjustment scale 622 remains clearly legible, ensuring long-term reliability. The adjustment scale 622 is circumferentially distributed on the limit bolt 62, allowing assembly personnel to clearly read the values ​​from multiple angles. Whether during installation, debugging, or maintenance, the necessary information can be easily obtained, improving work convenience.

[0034] Example 3: In the above examples, during the process of limiting the steering knuckle 3, insufficient buffering of the limiting bolt 62 can easily lead to wear on the head of the limiting bolt 62. Therefore, this application example optimizes the limiting bolt 62 based on the above examples.

[0035] In this embodiment, the head of the limiting bolt 62 is provided with a buffer part 7, which includes a silicone pad 71 and an elastic component 72. The silicone pad 71 is provided with an internal hexagonal notch 711 corresponding to the head of the limiting bolt 62, and the head of the limiting bolt 62 is provided with an annular groove 623 corresponding to the silicone pad 71. The elastic component 72 is located inside the annular groove 623, and the bottom of the silicone pad 71 is located inside the annular groove 623 and contacts the elastic component 72. The silicone pad 71 is slidably connected to the inner wall of the annular groove 623.

[0036] The elastic component 72 includes multiple leaf springs, which are circumferentially distributed inside the annular groove 623.

[0037] During use, the rotation angle of the steering knuckle 3 is controlled by adjusting the gap between the limiting bolt 62 and the steering knuckle 3. When the limiting bolt 62 limits the steering knuckle 3, the head of the limiting bolt 62 contacts the steering knuckle 3. The head of the limiting bolt 62 experiences significant wear, which is buffered by the buffer part 7 at the head of the limiting bolt 62. When limiting is required, the silicone gasket 71 first contacts the steering knuckle 3 for initial buffering and then presses towards the limiting bolt 62. The elastic component 72 begins to bear force, and the leaf spring begins to deform, providing further buffering and reducing the impact wear on the limiting bolt 62. Furthermore, the impact force of the silicone gasket 71 is optimized to ensure that the circumferentially distributed leaf springs can bear force evenly. The silicone gasket 71 has an internal hexagonal notch 711 located at the head of the limiting bolt 62, which can prevent the buffer part 7 from affecting the wrench when the assembly personnel use an internal or external hexagonal wrench to adjust the limiting bolt 62.

[0038] Compared with existing technologies, by providing a buffer portion 7 at the head of the limiting bolt 62, when the limiting bolt 62 limits the steering knuckle 3, the buffer portion 7 can first contact the steering knuckle 3, playing a preliminary buffering role. This reduces the direct hard contact between the head of the limiting bolt 62 and the steering knuckle 3, thus significantly reducing wear on the head of the limiting bolt 62. The combined use of the rubber gasket 71 and the elastic component 72 provides a dual buffering effect. The silicone gasket 71 has good elasticity and wear resistance, and can initially absorb part of the impact force; while the elastic component 72 can further absorb and disperse the impact force, thereby effectively improving the overall buffering effect. The multiple leaf springs in the elastic component 72 are circumferentially distributed, so that when the silicone gasket 71 is subjected to impact force, the leaf springs can be evenly stressed and deformed, avoiding damage caused by excessive local stress. It also ensures that the limiting bolt 62 remains stable when subjected to impact.

[0039] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A novel steering limit device for an automobile steering knuckle, comprising an axle tube (1), a wheel (2), a steering knuckle (3), a long tie rod (4), and a short tie rod (5), characterized in that: The wheel (2) is located at both ends of the axle tube (1). The long cross tie rod (4) and the short cross tie rod (5) are connected to the wheel (2) through the steering knuckle (3). The short cross tie rod (5) is located on one side of the axle tube (1). The axle tube (1) is provided with a limiting component (6) corresponding to the steering knuckle (3). The limiting component (6) includes a limiting plate (61) and a limiting bolt (62). The limiting plate (61) is fixedly connected to the axle tube (1). The limiting bolt (62) passes through the limiting plate (61) and is threaded between the limiting plate (61).

2. The steering limiting device for a novel automotive steering knuckle according to claim 1, characterized in that: The limiting component (6) is located on the bridge tube (1) near the end of the steering knuckle (3).

3. The steering limiting device for a novel automotive steering knuckle according to claim 1, characterized in that: The limiting bolt (62) is provided with a corresponding nut (621).

4. The steering limiting device for a novel automotive steering knuckle according to claim 1, characterized in that: The limiting bolt (62) is provided with an adjustment scale (622) corresponding to the steering knuckle (3).

5. A novel steering limit device for an automotive steering knuckle according to claim 4, characterized in that: There are multiple adjustment scales (622), and the multiple adjustment scales (622) are located on the limiting bolt (62) and are distributed in a circle.

6. A novel steering limit device for an automotive steering knuckle according to claim 5, characterized in that: The adjustment scale (622) is located on the limiting bolt (62) and is spirally distributed. The limiting bolt (62) is provided with a groove corresponding to the adjustment scale (622), and the adjustment scale (622) is located inside the groove.

7. The steering limiting device for a novel automotive steering knuckle according to claim 1, characterized in that: The head of the limiting bolt (62) is provided with a buffer part (7), the buffer part (7) includes a silicone pad (71) and an elastic component (72), the silicone pad (71) is located at the head of the limiting bolt (62) and is connected to it through the elastic component (72).

8. A novel steering limit device for an automotive steering knuckle according to claim 7, characterized in that: The silicone gasket (71) has an internal hexagonal notch (711) corresponding to the limiting bolt (62).

9. A novel steering limit device for an automotive steering knuckle according to claim 7, characterized in that: The head of the limiting bolt (62) is provided with an annular groove (623) corresponding to the silicone pad (71). The elastic component (72) is located inside the annular groove (623). The bottom of the silicone pad (71) is located inside the annular groove (623) and is in contact with the elastic component (72). The silicone pad (71) and the annular groove (623) are slidably connected.

10. A novel steering limit device for an automotive steering knuckle according to claim 7, characterized in that: The elastic component (72) includes a plurality of leaf springs, which are circumferentially distributed within an annular groove (623).

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