Steering angle module and vehicle

Abstract

The utility model provides a steering angle module and a vehicle. The steering angle module comprises a steering motor, a steering frame, a lower control arm and a ball pin assembly. A ball pin mounting hole is formed in the bogie, and a ball pin seat of the ball pin assembly is arranged in the ball pin mounting hole in a penetrating manner; a through hole is formed in the lower control arm, the steering motor is arranged in the through hole in a penetrating mode, the through hole and the ball pin mounting hole are coaxially arranged, and the central axis of the through hole is obliquely arranged relative to the Z direction; a taper hole is formed in the lower control arm, the lower point of the axis of the main pin is a ball pin mounting hole, a ball pin seat of the ball pin assembly is mounted in the ball pin mounting hole, a ball pin rod of the ball pin assembly penetrates through the taper hole, and the distance between the bottom of the ball pin rod and the hub is closer, so that the lateral space between the axis of the main pin and the hub is effectively reduced; the lower end of the ball pin rod is very close to the wheel, the requirement for the ground clearance can be properly lowered, the passing performance is not affected, and the bearing performance of the steering angle module is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle manufacturing technology, and in particular to a steering angle module and a vehicle. Background Art

[0002] Currently, the suspension in the wheel corner module includes a steering arm, a slide rail mechanism, and a steering knuckle. Because the axis line of the bogie is tilted inward of the vehicle (kingpin inclination angle), when the ball pin structure is arranged along the kingpin axis, the lower the kingpin lower point is, the closer it is to the hub motor. When the suspension jumps down, the gap between the hub motor and the ball pin will be too small or even interfere with each other. When the ground clearance is too low, the ball pin affects the vehicle's movement performance, resulting in limited jumping space for the entire suspension.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The present application provides a steering angle module and a vehicle to solve the technical problem of limited suspension jump space of the existing steering angle module.

[0005] The first aspect of the present invention provides a steering angle module, including a steering motor, a bogie, a lower control arm and a ball pin assembly; a ball pin mounting hole is provided on the bogie, and a ball pin seat of the ball pin assembly is passed through the ball pin mounting hole; a through hole is provided on the lower control arm, and the steering motor is passed through the through hole, the through hole and the ball pin mounting hole are coaxially arranged and the central axis of the through hole is inclined relative to the Z direction; a tapered hole is provided on the lower control arm, and the ball pin rod of the ball pin assembly is passed through the tapered hole.

[0006] In this solution, the through hole and the ball pin mounting hole are coaxially arranged to form the kingpin axis of the bogie. At this time, the lower point of the kingpin axis is the ball pin mounting hole, and the ball pin seat of the ball pin assembly is installed in the ball pin mounting hole, and the ball pin rod of the ball pin assembly is passed through the tapered hole. At this time, the bottom of the ball pin rod is closer to the wheel hub, which effectively reduces the lateral space between the kingpin axis and the wheel hub, thereby reducing the resistance torque of the steering angle module during steering, reducing the power and torque of the steering motor, and achieving cost and weight reduction. At the same time, the lower end of the ball pin rod is already very close to the wheel, and the ground clearance requirement can be appropriately reduced without affecting the passing performance, thereby improving the load-bearing performance of the steering angle module.

[0007] In a further solution of the present invention, the steering angle module also includes a clamping piece; a cutout and a clamping hole are opened on the bogie, the cutout is connected to the ball pin mounting hole, and the clamping hole passes through the cutout; the clamping piece passes through the clamping hole and clamps the cutout to fix the connection between the bogie and the ball pin assembly.

[0008] In this solution, the incision is designed to be connected to the ball pin mounting hole, and a tightening hole is opened at the incision. The locking piece is passed through the tightening hole and tightens the incision, thereby enhancing the stability of the connection between the bogie and the ball pin assembly. During vehicle driving, especially in complex road conditions or high-speed steering, it can effectively prevent loosening or detachment between components and ensure stable operation of the steering system.

[0009] In a further solution of the present invention, the steering angle module further includes a locking piece; the ball and pin assembly passes through the tapered hole and is connected to the locking piece to lock the ball and pin assembly and the lower control arm.

[0010] In this solution, the locking piece ensures that the connection between the ball pin assembly and the lower control arm is more secure and reliable. During vehicle driving, this stable connection can effectively resist the influence of external factors such as vibration and impact, and prevent the ball pin assembly from loosening or falling out in the tapered hole, thereby ensuring the stability and safety of the steering system. By reducing the gap and relative movement between components, the transmission of steering force is more direct and precise, which helps to improve the vehicle's steering accuracy, enables the driver to more accurately control the vehicle's driving direction, and enhances driving comfort and controllability.

[0011] In a further solution of the present invention, the steering angle module further includes a shock absorber, one end of the shock absorber is movably connected to the bogie, and the other end of the shock absorber is movably connected to the lower control arm.

[0012] In this solution, the shock absorber acts as a vibration absorbing device, which can effectively reduce the vibration and impact caused by uneven road conditions or steering operations during vehicle driving. The reduction in vibration and impact directly improves the riding comfort of the driver and passengers, and reduces the fatigue caused by long-term driving or riding. The presence of the shock absorber helps stabilize the movement state of the steering system and reduce the risk of component loosening or damage due to vibration and impact.

[0013] In a further solution of the present invention, the steering angle module further includes a sliding column assembly; a pair of connecting ears are provided on the inner surface of the bogie, and the sliding column assembly is provided between the pair of connecting ears and connected to the connecting ears.

[0014] In this solution, the strut assembly provides additional support and fixing points for the bogie, enhancing the structural strength and rigidity of the entire steering angle module. This makes the steering system more stable when subjected to various forces and moments, reducing the risk of performance degradation or failure due to deformation or twisting. The strut assembly allows the bogie to slide or rotate smoothly within a certain range, thereby optimizing the trajectory of the steering movement, helping to reduce friction and resistance during the steering process and improving steering efficiency and response speed.

[0015] In a further solution of the present invention, the steering angle module further includes a connecting rod and a rod connector. A boss is provided on the bogie, and a rod connector hole is opened on the boss. The rod connector passes through the connecting rod and the rod connector hole to connect the connecting rod and the bogie.

[0016] In this solution, the connecting rod, a key transmission component in the steering system, is connected to the boss and rod connection hole on the bogie via a rod connector. This ensures smooth transmission of steering force between the bogie and the connecting rod, enhancing the flexibility of the steering system and allowing the driver to experience a more rapid and accurate response during steering operations. The tight fit of the rod connector through the connecting rod and the rod connection hole ensures that the connecting rod maintains the predetermined angle and trajectory during rotation, reducing steering errors caused by loose connections or excessive clearance. This high-precision connection helps improve the vehicle's handling performance and driving stability.

[0017] In a further embodiment of the present invention, the connecting rod includes a first connecting rod, a pair of second connecting rods and a pair of third connecting rods; there are multiple bosses, including a pair of first bosses, a pair of second bosses and a pair of third bosses symmetrically arranged on the bogie; a first connecting rod is connected to any first boss through a rod connecting member, each second connecting rod is connected to the corresponding second boss, and each third connecting rod is connected to the corresponding third boss; the sliding column is arranged between the pair of first connecting rods and between the pair of third connecting rods.

[0018] In a further solution of the present invention, a plurality of reinforcing ribs are provided on the inner surface of the bogie, and the first boss, the second boss, and the third boss are respectively connected to at least one reinforcing rib.

[0019] In this solution, the strength of the entire bogie can be improved by providing reinforcing ribs, and the first boss, the second boss, and the third boss are respectively connected to at least one reinforcing rib to ensure the connection strength between the connecting rod and the bogie.

[0020] In a further solution of the present invention, the steering angle module further includes a wheel assembly, and the connecting rod and the sliding column assembly are both movably connected to the wheel assembly.

[0021] In this solution, the wheel assembly serves as the direct actuator for vehicle movement, and its active connection with the connecting rod and strut assembly ensures close fit and coordinated movement among the various components of the steering system.

[0022] A second aspect of the present invention provides a vehicle, comprising the steering angle module provided by the first aspect of the present invention.

[0023] In summary, the steering angle module and vehicle provided by this application have at least the following beneficial effects:

[0024] In this solution, the through hole and the ball pin mounting hole are coaxially arranged to form the kingpin axis of the bogie. At this time, the lower point of the kingpin axis is the ball pin mounting hole, and the ball pin seat of the ball pin assembly is installed in the ball pin mounting hole, and the ball pin rod of the ball pin assembly is passed through the tapered hole. At this time, the bottom of the ball pin rod is closer to the wheel hub, which effectively reduces the lateral space between the kingpin axis and the wheel hub, thereby reducing the resistance torque of the steering angle module during steering, reducing the power and torque of the steering motor, and achieving cost and weight reduction. At the same time, the lower end of the ball pin rod is already very close to the wheel, and the ground clearance requirement can be appropriately reduced without affecting the passing performance, thereby improving the load-bearing performance of the steering angle module. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0026] Figure 1 A schematic structural diagram of a steering angle module provided in an embodiment of the present application;

[0027] Figure 2 An exploded view of a portion of the structure of a steering angle module provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the connection structure between the bogie and the connecting rod provided in an embodiment of the present application; and

[0029] Figure 4 This is a schematic diagram of the comparative structure of the kingpin axis of the steering angle module provided in an embodiment of the present application compared with the prior art.

[0030] The reference numerals are as follows:

[0031] 100, bogie; 110, boss; 110A, first boss; 110B, second boss; 110C, third boss;

[0032] 100A, ball pin mounting hole; 100B, cutout; 100C, pressing hole; 100D, rod connection hole; 120, reinforcement rib;

[0033] 200, connecting rod; 210, first connecting rod; 220, second connecting rod; 230, third connecting rod;

[0034] 300, lower control arm; 300A, tapered hole;

[0035] 400, ball pin assembly; 410, ball pin seat; 420, ball pin rod;

[0036] 500, shock absorber; 600, steering motor; 700, wheel; 800, strut assembly;

[0037] 910, locking member; 920, pressing member; 930, rod connecting member. DETAILED DESCRIPTION

[0038] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear to indicate the orientation or position relationship, unless otherwise specified, they are understood to be based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting this application.

[0039] Furthermore, the use of "first" or "second" in describing features is for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features identified. Features identified as "first" or "second" may explicitly or implicitly include at least one of the identified features. The use of the word "plurality" generally implies at least two, such as two or three, unless otherwise specifically defined.

[0040] In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; mechanical connections, electrical connections, direct connections, or indirect connections through an intermediary; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0041] In the description of this specification, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0042] Please refer to Figure 1-Figure 2 The first aspect of the present invention provides a steering angle module, including a steering motor 600, a bogie 100, a lower control arm 300 and a ball and pin assembly 400; a ball and pin mounting hole 100A is provided on the bogie 100, and a ball and pin seat 410 of the ball and pin assembly 400 is inserted into the ball and pin mounting hole 100A; a through hole is provided on the lower control arm 300, and the steering motor 600 is inserted into the through hole, and the through hole is coaxially arranged with the ball and pin mounting hole 100A and the central axis of the through hole is inclined relative to the Z direction; a tapered hole 300A is provided on the lower control arm 300, and a ball and pin rod 420 of the ball and pin assembly 400 is inserted into the tapered hole 300A.

[0043] In this solution, the through hole and the ball pin mounting hole 100A are coaxially arranged to form the kingpin axis of the bogie 100. At this time, the lower point of the kingpin axis is the ball pin mounting hole 100A, and the ball pin seat 410 of the ball pin assembly 400 is installed in the ball pin mounting hole 100A, and the ball pin rod 420 of the ball pin assembly 400 is passed through the tapered hole 300A. At this time, the bottom of the ball pin rod 420 is closer to the wheel hub, which effectively reduces the lateral space between the kingpin axis and the wheel hub, thereby reducing the resistance torque of the steering angle module during steering, reducing the power and torque of the steering motor 600, and achieving cost and weight reduction. At the same time, the lower end of the ball pin rod 420 is already very close to the wheel 700, and the ground clearance requirement can be appropriately reduced without affecting the passing performance, thereby improving the load-bearing performance of the steering angle module.

[0044] In a further embodiment of the present invention, the steering angle module further includes a pressing member 920; a cutout 100B and a pressing hole 100C are provided on the bogie 100, the cutout 100B is connected to the ball pin mounting hole 100A, and the pressing hole 100C passes through the cutout 100B; the pressing member 920 passes through the pressing hole 100C and presses the cutout 100B to fix the connection between the bogie 100 and the ball pin assembly 400.

[0045] In this solution, the incision 100B is designed to be connected to the ball pin mounting hole 100A, and a tightening hole 100C is opened at the incision 100B. The locking member 910 is passed through the tightening hole 100C and tightens the incision 100B, thereby enhancing the connection stability between the bogie 100 and the ball pin assembly 400. During vehicle driving, especially in complex road conditions or high-speed steering, it can effectively prevent loosening or detachment between components, thereby ensuring the stable operation of the steering system.

[0046] Please refer to Figure 3 In a further embodiment of the present invention, the steering angle module further includes a locking member 910 ; the ball pin assembly 400 passes through the tapered hole 300A and is connected to the locking member 910 to lock the ball pin assembly 400 and the lower control arm 300 .

[0047] In this solution, the locking member 910 ensures that the connection between the ball pin assembly 400 and the lower control arm 300 is more secure and reliable. During vehicle driving, this secure connection can effectively resist the influence of external factors such as vibration and impact, and prevent the ball pin assembly 400 from loosening or falling out in the tapered hole 300A, thereby ensuring the stability and safety of the steering system. By reducing the gap and relative movement between components, the transmission of steering force is more direct and precise, which helps to improve the steering accuracy of the vehicle, enables the driver to more accurately control the vehicle's driving direction, and enhances driving comfort and controllability.

[0048] In a further solution of the present invention, the steering angle module further includes a shock absorber 500 , one end of the shock absorber 500 is movably connected to the bogie 100 , and the other end of the shock absorber 500 is movably connected to the lower control arm 300 .

[0049] In this solution, the shock absorber 500 serves as a vibration absorbing device, which can effectively reduce the vibration and impact caused by uneven road conditions or steering operations during vehicle driving. The reduction in vibration and impact directly improves the riding comfort of the driver and passengers, and reduces the fatigue caused by long-term driving or riding. The presence of the shock absorber 500 helps to stabilize the movement state of the steering system and reduce the risk of component loosening or damage due to vibration and impact.

[0050] In a further embodiment of the present invention, the steering angle module further includes a sliding column assembly 800 ; a pair of connecting ears are provided on the inner surface of the bogie 100 , and the sliding column assembly 800 is provided between the pair of connecting ears and connected to the connecting ears.

[0051] In this solution, the slide column assembly 800 provides additional support and fixing points for the bogie 100, enhancing the structural strength and rigidity of the entire steering angle module. This makes the steering system more stable when subjected to various forces and moments, and reduces the risk of performance degradation or failure due to deformation or twisting. The slide column assembly 800 allows the bogie 100 to slide or rotate smoothly within a certain range, thereby optimizing the trajectory of the steering movement, helping to reduce friction and resistance during the steering process, and improving the efficiency and response speed of steering.

[0052] In a further embodiment of the present invention, the steering angle module further includes a connecting rod 200 and a rod connector 930 . A boss 110 is provided on the bogie 100 , and a rod connector hole 100D is provided on the boss 110 . The rod connector 930 passes through the connecting rod 200 and the rod connector hole 100D to connect the connecting rod 200 and the bogie 100 .

[0053] In this solution, connecting rod 200, a key transmission component in the steering system, is connected to boss 110 and rod connection hole 100D on bogie 100 via rod connector 930. This ensures smooth transmission of steering force between bogie 100 and connecting rod 200, enhancing the flexibility of the steering system and allowing the driver to experience a more rapid and accurate response during steering operations. The tight fit of connecting rod 930, which passes through connecting rod 200 and into rod connection hole 100D, ensures that connecting rod 200 maintains a predetermined angle and trajectory during rotation, reducing steering errors caused by loose connections or excessive clearance. This high-precision connection helps improve the vehicle's handling performance and driving stability.

[0054] In a further embodiment of the present invention, the connecting rod 200 includes a first connecting rod 210, a pair of second connecting rods 220 and a pair of third connecting rods 230; there are multiple bosses 110, and the multiple bosses 110 include a pair of first bosses 110A, a pair of second bosses 110B and a pair of third bosses 110C symmetrically arranged on the bogie 100; a first connecting rod 210 is connected to any first boss 110A through a rod connector 930, each second connecting rod is connected to the corresponding second boss 110B, and each third connecting rod 230 is connected to the corresponding third boss 110C; the sliding column is arranged between the pair of first connecting rods 210 and the pair of third connecting rods 230.

[0055] In a further embodiment of the present invention, a plurality of reinforcing ribs 120 are provided on the inner surface of the bogie 100 , and the first boss 110A, the second boss 110B, and the third boss 110C are respectively connected to at least one reinforcing rib 120 .

[0056] In this solution, the strength of the entire bogie 100 can be improved by providing a reinforcing rib 120 , and the first boss 110A, the second boss 110B, and the third boss 110C are respectively connected to at least one reinforcing rib 120 to ensure the connection strength between the connecting rod and the bogie 100 .

[0057] In a further embodiment of the present invention, the steering angle module further includes a wheel 700 assembly, and the connecting rod and the sliding column assembly 800 are both movably connected to the wheel 700 assembly.

[0058] In this solution, the wheel 700 assembly serves as the direct actuator for vehicle movement, and its active connection with the connecting rod and strut assembly 800 ensures close fit and coordinated movement between the various components of the steering system.

[0059] A second aspect of the present invention provides a vehicle, comprising the steering angle module provided by the first aspect of the present invention.

[0060] Please refer to further Figure 4 Because the kingpin axis is tilted toward the inside of the vehicle (kingpin inclination angle), when the ball pin assembly 400 is arranged along the kingpin axis, the lower the kingpin lower point is, the closer it is to the hub motor on the wheel 700. When the suspension jumps down, the gap between the hub motor and the ball pin assembly 400 will be too small or even interfere with each other; if the ball pin seat is set below the outer point of the lower control arm, the corresponding kingpin lower point is ', and the distance between the kingpin lower point and the hub motor is Y'; the inverted installation method in which the ball pin seat 410 is set on the bogie 100 and the ball pin rod 420 is facing downward corresponds to the kingpin lower point, and the distance between the kingpin lower point and the hub motor is Y. It can be clearly seen that Y>Y'. The inverted installation method with the ball pin rod 420 facing downward can more effectively utilize the lateral space between the kingpin and the hub motor, that is, the inverted ball pin can make the kingpin closer to the wheel center, reduce the offset between the kingpin and the wheel center, thereby reducing the resistance torque of the steering angle module during steering, reducing the power and torque of the steering motor 600, and achieving cost and weight reduction.

[0061] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A steering angle module, characterized in that: It includes a steering motor (600), a steering rack (100), a lower control arm (300), and a ball pin assembly (400); A ball pin mounting hole (100A) is provided on the bogie (100), and a ball pin seat (410) of the ball pin assembly (400) is inserted into the ball pin mounting hole (100A); A through hole is provided on the lower control arm (300), the steering motor (600) is inserted into the through hole, the through hole is coaxially arranged with the ball pin mounting hole (100A), and the central axis of the through hole is inclined relative to the Z direction; A tapered hole (300A) is provided on the lower control arm (300), and the ball pin rod (420) of the ball pin assembly (400) is passed through the tapered hole (300A).

2. The steering angle module according to claim 1, characterized in that The steering angle module further includes a pressing member (920); The bogie (100) is provided with a cutout (100B) and a pressing hole (100C), the cutout (100B) is communicated with the ball pin mounting hole (100A), and the pressing hole (100C) passes through the cutout (100B); The pressing member (920) passes through the pressing hole (100C) and presses the cutout (100B) to fix the connection between the bogie (100) and the ball and pin assembly (400).

3. The steering angle module according to claim 2, characterized in that: The steering angle module further includes a locking member (910); The ball pin assembly (400) passes through the tapered hole (300A) and is connected to the locking member (910) to lock the ball pin assembly (400) and the lower control arm (300).

4. The steering angle module according to claim 1, characterized in that The steering angle module further comprises a shock absorber (500), one end of the shock absorber (500) being movably connected to the bogie (100) and the other end being movably connected to the lower control arm (300).

5. The steering angle module according to claim 1, characterized in that: The steering angle module further includes a sliding column assembly (800); A pair of connecting ears is provided on the inner surface of the bogie (100), and the sliding column assembly (800) is provided between the pair of connecting ears and connected to the connecting ears.

6. The steering angle module according to claim 5, characterized in that: The steering angle module further comprises a connecting rod (200) and a rod connecting member (930); a boss (110) is provided on the bogie (100); and a rod connecting hole (100D) is provided on the boss (110); The rod connecting member (930) passes through the connecting rod (200) and the rod connecting hole (100D) to connect the connecting rod (200) and the bogie (100).

7. The steering angle module according to claim 6, characterized in that: The connecting rod (200) includes a first connecting rod (210), a pair of second connecting rods (220), and a pair of third connecting rods (230); The bosses (110) are multiple in number, and the multiple bosses (110) include a pair of first bosses (110A), a pair of second bosses (110B), and a pair of third bosses (110C) symmetrically arranged on the bogie (100); One of the first connecting rods (210) is connected to any one of the first bosses (110A) via the rod connector (930), each of the second connecting rods (220) is connected to a corresponding second boss (110B), and each of the third connecting rods (230) is connected to a corresponding third boss (110C); The sliding column is arranged between a pair of the first connecting rods (210) and between a pair of the third connecting rods (230).

8. The steering angle module according to claim 7, characterized in that: A plurality of reinforcing ribs (120) are provided on the inner surface of the bogie (100), and the first boss (110A), the second boss (110B), and the third boss (110C) are respectively connected to at least one reinforcing rib (120).

9. The steering angle module according to claim 6, characterized in that: The steering angle module further includes a wheel (700) assembly, and the connecting rod and the sliding column assembly (800) are both movably connected to the wheel (700) assembly.

10. A vehicle, characterized in that: The steering angle module comprises the steering angle module according to any one of claims 1 to 9.

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