CN112224282A

CN112224282A - Front suspension structure with adjustable inner inclination angle of main pin

Info

Publication number: CN112224282A
Application number: CN202011125151.1A
Authority: CN
Inventors: 徐晓虎; 黄召玉; 丁元章; 任国娟
Original assignee: New Energy Automobile Research Institute Co ltd; Jiangsu Xinxin Energy Passenger Car Co ltd
Current assignee: New Energy Automobile Research Institute Co ltd; Jiangsu Xinxin Energy Passenger Car Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-01-15

Abstract

The invention discloses a front suspension structure with an adjustable inner inclination angle of a main pin, which comprises a steering knuckle (10), an upper swing arm spherical hinge, an upper swing arm, a lower swing arm spherical hinge, a lower swing arm and a frame, wherein one end of the lower swing arm is connected with the lower swing arm spherical hinge, the other end of the lower swing arm is provided with a connecting mechanism, the lower swing arm is connected with the connecting mechanism through a pivot, the connecting mechanism is movably fixed on the frame, and the connecting mechanism adjusts the distance between the lower swing arm and the frame. The invention has the advantages of simple structure, ingenious design, convenience in steering adjustment, efficiency improvement, deviation prevention and the like.

Description

Front suspension structure with adjustable inner inclination angle of main pin

Technical Field

The invention belongs to the field of electric automobiles, and particularly relates to a front suspension structure with an adjustable inner inclination angle of a main pin.

Background

The kingpin inclination angle refers to an acute projection angle of an axis of a kingpin of an automobile steering knuckle (or a connecting line of centers of a ball pin of an upper swing arm and a ball pin of a lower swing arm of an independent suspension) and a plumb line on a plane vertical to a longitudinal symmetry plane of a vehicle. Specifically, when the tire is viewed from the front-rear direction of the vehicle, the kingpin axis is inclined toward the vehicle body inner side, and this angle is referred to as a kingpin inclination angle.

In the prior art, a lower swing arm and a sub-frame of a common electric automobile passenger car suspension are connected through a bolt, and the connection point of the lower swing arm cannot be adjusted in the car width direction, so that the inner inclination angle of a main pin cannot be adjusted. The steering deviation problem or the driving deviation problem can not be improved when the inclination angle of the kingpin is small due to manufacturing errors or the steering deviation problem or the driving deviation problem occurs due to the asymmetry of the left side and the right side.

Disclosure of Invention

The invention aims to provide a front suspension structure with an adjustable inner inclination angle of a main pin, which has the advantages of simple structure, ingenious design, convenience in steering adjustment, efficiency improvement and deviation prevention.

In order to achieve the purpose, the invention adopts the following technical scheme: a front suspension structure with an adjustable inner inclination angle of a main pin comprises a steering knuckle, an upper swing arm spherical hinge, an upper swing arm, a lower swing arm spherical hinge, a lower swing arm and a frame,

two ends of the steering knuckle are respectively connected with the upper swing arm spherical hinge and the lower swing arm spherical hinge;

one end of the upper swing arm is connected with the upper swing arm through a spherical hinge, and the other end of the upper swing arm is connected with the frame;

one end of the lower swing arm is connected with the lower swing arm through a spherical hinge, the other end of the lower swing arm is provided with a connecting mechanism, the lower swing arm is connected with the connecting mechanism through a pivot, the connecting mechanism is movably fixed on the frame, and the connecting mechanism adjusts the distance between the lower swing arm and the frame.

Furthermore, the lower swing arm is V-shaped, the sharp-angle end of the lower swing arm is connected with the lower swing arm through a spherical hinge, and the two leg ends of the lower swing arm are both provided with the connecting mechanism.

Furthermore, the connecting mechanism comprises two connecting bolts and a fixed shaft, the lower swing arm is sleeved on the fixed shaft, two ends of the fixed shaft are respectively sleeved on the two connecting bolts, the connecting bolts are in threaded connection with the frame, a gasket is arranged on the connecting bolt between the fixed shaft and the frame, the distance between the lower swing arm and the frame is adjusted by increasing or decreasing the number of the gaskets, and therefore the angle of the cancellation dip angle is adjusted.

Furthermore, the distance between the two leg ends of the lower swing arm and the frame is kept consistent, and the number of the gaskets on the two connecting mechanisms is kept the same.

Furthermore, the vehicle frame further comprises a fixed sleeve, the fixed sleeve is embedded in the vehicle frame, and threads matched with the connecting bolts are arranged in the fixed sleeve.

Furthermore, the fixing sleeve is connected with the frame in a welding mode.

Furthermore, the upper swing arm is V-shaped, the sharp-angled end of the upper swing arm is connected with the upper swing arm through a spherical hinge, the two leg ends of the upper swing arm are both provided with the connecting mechanism, and the connecting mechanism is movably fixed on the frame.

Furthermore, the upper swing arm is connected with the connecting mechanism through a pivot, and the connecting mechanism adjusts the distance between the upper swing arm and the frame, so that the angle of the cancellation dip angle is adjusted.

Furthermore, the distance between the two leg ends of the upper swing arm and the frame is kept consistent, and the number of the gaskets on the two connecting mechanisms is kept the same.

Compared with the prior art, the invention has the following beneficial effects:

1. simple structure, ingenious design, and convenient industrial manufacture and large-scale popularization.

2. The angle of the cancellation dip angle is adjusted by adding the gasket, so that the steering return function is improved, and the running deviation problem caused by asymmetry of the positioning parameters of the two front wheels is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a front suspension structure with a kingpin having an adjustable inclination angle according to the present invention.

Fig. 2 is a schematic structural view of the connection mechanism in fig. 1.

Reference numerals: 10-knuckle, 20-upper swing arm spherical hinge, 30-upper swing arm, 40-lower swing arm spherical hinge, 50-lower swing arm, 60-fixing sleeve and 70-frame, 51-connecting mechanism, 31-connecting mechanism, 52-connecting bolt, 53-fixing shaft and 54-gasket.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 and 2, the invention discloses a front suspension structure with an adjustable kingpin inclination angle, which comprises a steering knuckle 10, an upper swing arm ball joint 20, an upper swing arm 30, a lower swing arm ball joint 40, a lower swing arm 50, a fixing sleeve 60 and a frame 70. Two ends of the steering knuckle 10 are respectively connected with the upper swing arm spherical hinge 20 and the lower swing arm spherical hinge 40. One end of the upper swing arm 30 is connected with the upper swing arm ball joint 20, and the other end of the upper swing arm 30 is connected with the frame 70. One end of the lower swing arm 50 is connected with the lower swing arm ball joint 40, the other end of the lower swing arm 50 is provided with a connecting mechanism 51, the lower swing arm 50 is pivotally connected to the connecting mechanism 51, the connecting mechanism 51 is movably fixed to the frame 70, and the connecting mechanism 51 adjusts the distance between the lower swing arm 50 and the frame 70.

In one embodiment, the lower swing arm 50 is V-shaped, the pointed end of the lower swing arm 50 is connected to the lower swing arm ball joint 40, and the two leg ends of the lower swing arm 50 are provided with the connecting mechanism 51.

The connecting mechanism 51 includes two connecting bolts 52 and a fixed shaft 53. The lower swing arm 50 is sleeved on the fixed shaft 53, and two ends of the fixed shaft 53 are respectively sleeved on the two connecting bolts 52. The connecting bolts 52 are all in threaded connection with the frame 70, a gasket 54 is arranged on the connecting bolt 52 between the fixed shaft 53 and the frame 70, and the distance between the lower swing arm 50 and the frame 70 is adjusted by increasing or decreasing the number of the gaskets 54, so that the angle of the cancellation dip angle is adjusted.

In one embodiment, the distance between the two leg ends of the lower swing arm 50 and the frame 70 is kept the same, and the number of pads on the two connecting mechanisms 51 is kept the same.

The fixing sleeve 60 is embedded in the frame 70, and a thread matched with the connecting bolt 52 is arranged in the fixing sleeve 60. The fixing sleeve 60 is welded to the frame 70.

In one embodiment, the upper swing arm 30 is V-shaped, the pointed end of the upper swing arm 30 is connected to the upper swing arm ball hinge 20, the two leg ends of the upper swing arm 30 are both provided with the connecting mechanism 31, and the connecting mechanism 31 is movably fixed to the frame 70.

The upper swing arm 30 is pivotally connected to the connecting mechanism 31, and the connecting mechanism 31 adjusts the distance between the upper swing arm 30 and the frame 70, so as to adjust the angle of the cancellation tilt angle.

The distance between the two leg ends of the upper swing arm 30 and the frame 70 is kept consistent, and the number of the gaskets on the two connecting mechanisms 31 is kept the same.

In the invention, the distance between the upper swing arm and the frame and the distance between the lower swing arm and the frame can be adjusted by increasing or decreasing the gaskets, so that the angle of the cancellation dip angle can be more accurately adjusted.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The utility model provides a swizzle inclination adjustable front suspension structure which characterized in that: which comprises a steering knuckle (10), an upper swing arm spherical hinge (20), an upper swing arm (30), a lower swing arm spherical hinge (40), a lower swing arm (50) and a frame (70),

two ends of the steering knuckle (10) are respectively connected with the upper swing arm spherical hinge (20) and the lower swing arm spherical hinge (40);

one end of the upper swing arm (30) is connected with the upper swing arm spherical hinge (20), and the other end of the upper swing arm (30) is connected with the frame (70);

the one end of lower swing arm (50) with lower swing arm ball pivot (40) are connected, the other end of lower swing arm (50) is provided with coupling mechanism (31,51), lower swing arm (50) pivot connect in coupling mechanism (31,51), coupling mechanism (31,51) activity is fixed in frame (70), coupling mechanism (31,51) are adjusted swing arm (50) with the distance of frame (70) down.

2. The kingpin inclination adjustable front suspension structure of claim 1, wherein: the lower swing arm (50) is V-shaped, the sharp-angle end of the lower swing arm (50) is connected with the lower swing arm spherical hinge (40), and the two leg ends of the lower swing arm (50) are provided with the connecting mechanisms (31, 51).

3. The kingpin inclination adjustable front suspension structure of claim 2, wherein: the connecting mechanism (31,51) comprises two connecting bolts (52) and a fixed shaft (53), the lower swing arm (50) is sleeved on the fixed shaft (53), two ends of the fixed shaft (53) are respectively sleeved on the two connecting bolts (52), the connecting bolts (52) are both in threaded connection with the frame (70), a gasket (54) is arranged on the connecting bolt (52) between the fixed shaft (53) and the frame (70), and the distance between the lower swing arm (50) and the frame (70) is adjusted by increasing or decreasing the number of the gaskets (54), so that the angle of the cancellation dip angle is adjusted.

4. The kingpin inclination adjustable front suspension structure of claim 3, wherein: the distance between the two leg ends of the lower swing arm (50) and the vehicle frame (70) is kept consistent, and the quantity of the gaskets (54) on the two connecting mechanisms (31,51) is kept the same.

5. The kingpin inclination adjustable front suspension structure of claim 1, wherein: the automobile frame is characterized by further comprising a fixing sleeve (60), wherein the fixing sleeve (60) is embedded into the automobile frame (70), and threads matched with the connecting bolts (52) are arranged in the fixing sleeve (60).

6. The kingpin inclination adjustable front suspension structure of claim 5, wherein: the fixed sleeve (60) is connected with the frame (70) in a welding mode.

7. The kingpin inclination adjustable front suspension structure of claim 1, wherein: the upper swing arm (30) is V-shaped, the sharp-angle end of the upper swing arm (30) is connected with the upper swing arm spherical hinge (20), the two leg ends of the upper swing arm (30) are respectively provided with the connecting mechanisms (31,51), and the connecting mechanisms (31,51) are movably fixed on the frame (70).

8. The kingpin inclination adjustable front suspension structure of claim 7, wherein: the upper swing arm (30) is pivotally connected to the connecting mechanism (31,51), and the connecting mechanism (31,51) adjusts the distance between the upper swing arm (30) and the frame (70), so as to adjust the angle of the cancellation dip angle.

9. The kingpin inclination adjustable front suspension structure of claim 8, wherein: the distance between the two leg ends of the upper swing arm (30) and the vehicle frame (70) is kept consistent, and the quantity of the gaskets (54) on the two connecting mechanisms (31,51) is kept the same.