CN211617859U

CN211617859U - Knuckle arm

Info

Publication number: CN211617859U
Application number: CN202020049497.7U
Authority: CN
Inventors: 徐秀良; 范成恩; 程金林; 范亦辰
Original assignee: Sinotruk Jinan Power Co Ltd
Current assignee: Sinotruk Jinan Power Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-10-02
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a knuckle arm is equipped with platform one, platform two and connection platform one and platform two's arm, platform two is not on same front and back with platform one, and sets up 3 ~ 30 angles according to the a steering system needs. The utility model discloses a knuckle arm, through the design of platform, the steering bulb center of formation, when making inside and outside turn to, steering wheel turned angle is the same basically. Through the structural design of the arm, the torque supported by the arm does not change obviously in the steering process, the arm can withstand the tests under various severe conditions, and the service life of the bridge and the whole vehicle is prolonged.

Description

Knuckle arm

Technical Field

The utility model relates to a vehicle knuckle arm belongs to automobile parts technical field.

Background

The knuckle arm is an important part of a vehicle steering system, and is of a simple and symmetrical straight arm structure. The prior art steyr bridge knuckle arm configuration is shown in figures 4a and 4 b.

When the vehicle turns left and right, the rotation angle of the steering knuckle is different. Taking the left-hand vehicle as an example, the steering system components such as the steering gear, the knuckle arm, etc. are arranged on the left side of the vehicle. When steering left, the rotation angle of the knuckle arm is an inner rotation angle; when the steering wheel is steered to the right, the rotating angle of the steering knuckle arm is an outer rotating angle, and the inner rotating angle is obviously larger than the outer rotating angle. According to the driving habit of a common driver, when the vehicle is wanted to turn left and right, the rotating angles of the steering wheel are the same. The driver steering wheel is required to have the same rotation angle and different vehicle inner and outer rotation angles through the design of the steering system, and the driver steering wheel is generally realized by designing a swing arm structure.

With the development of technology, and in particular with the emphasis on vehicle safety, the weight of the cab gradually increases. The weight of the engine is increased with the increase of the power of the automobile. The cab and the engine are both located at the front of the vehicle, primarily carried by the front axle. This requires an increase in the strength of the relevant part on the front axle, and the knuckle arm is one of the parts that needs to be reinforced.

In the steering and correcting process, the larger the turning angle is, the larger the force borne by each part of the steering system is. This requires the knuckle arm structure to be more suitable for stress requirements, and straight arms do not take this into account.

Disclosure of Invention

The utility model aims to solve the technical problem that to the defect that prior art exists, provide a knuckle arm that the structure is more reasonable, intensity is bigger.

In order to solve the technical problem, the utility model provides a knuckle arm is equipped with the arm of platform one, platform two and connection platform one and platform two, platform two is not on same front and back with platform one, and sets up 3 ~ 30 angles according to the a steering system needs.

The arm is provided with a curved surface S1 and a curved surface S2.

The knuckle arm ball pin point P1 is located at a position intermediate the inner and outer rotation angle limit points.

The first platform is connected with the steering knuckle through a bolt, and the second platform is connected with the steering drag link through a ball pin; when the steering mechanism is used for steering, the steering drag link is driven by the steering engine, the steering drag link pushes the steering knuckle to drive the whole wheel edge to rotate around the main pin by pushing the steering knuckle arm, and the steering drag link is connected with the wheel edges on the two sides, so that the steering of the vehicle is realized.

Has the advantages that: the utility model discloses a knuckle arm, through the design of platform, the steering bulb center of formation, when making inside and outside turn to, steering wheel turned angle is the same basically. Through the structural design of the arm, the torque supported by the arm does not change obviously in the steering process, the arm can withstand the tests under various severe conditions, and the service life of the bridge and the whole vehicle is prolonged.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is an assembly schematic view of the present invention;

FIG. 4a is a schematic front view of a prior art Steyr bridge knuckle arm configuration;

FIG. 4b is a schematic top view of a prior art Steyr bridge knuckle arm configuration.

In the figure: 1 platform I, 2 platform II and 3 arms; 4 steering drag link, 5 knuckle arm, 6 knuckle, 7 tie rod.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Fig. 1 is a front view showing a schematic structure of the present invention.

Fig. 2 is a schematic plan view of the structure of the present invention.

The utility model provides a knuckle arm is equipped with platform 1, platform two 2 and connection platform 1 and platform two 2's arm 3, platform two 2 and platform 1 are not on same front and back, and set up 3 ~ 30 angles according to the a steering system needs.

In order to ensure that the arm can bear large load in the steering process, the arm 3 is provided with a curved surface S1 and a curved surface S2 according to the stress condition in the steering process.

Fig. 3 is a schematic view of the assembly of the present invention.

A first platform 1 of the knuckle arm is connected with a knuckle 6 through a bolt, and a second platform 2 is connected with a steering drag link 4 through a ball pin; the steering drag link 4, the knuckle arm 5, the knuckle 6, the tie rod arm 8, the tie rod 7 and other accessories form a steering system.

The knuckle arm 5, the knuckle 6 and the tie rod arm 8 are fixed together by bolts to form a knuckle assembly, and rotate around the center line of a main pin on the knuckle. When the steering system steers, the steering drag link 4 is driven by the steering engine, the steering drag link 4 pushes the steering knuckle arm 5 through the ball pin at the end part, namely, the steering knuckle assembly is pushed to rotate for a certain angle around the main pin, and the steering tie rod 7 is connected with the steering knuckle assemblies at two sides through the ball pins at the two ends so as to realize synchronous steering of the steering knuckle assemblies at two sides, namely steering of a vehicle.

The utility model discloses a design the knuckle arm of a new construction, provide a solid in structure's knuckle arm for the vehicle to simplify the design of a steering system. To achieve the same steering wheel angle for both left and right turns of the vehicle, the knuckle arm ball pin point P1 is located at a position intermediate the inner and outer rotation angle limit points, rather than on the same front and rear faces as the knuckle axis. The second platform and the first platform are not on the same front and back surfaces, and a certain angle is set according to the requirement of a steering system.

The above embodiments of the present invention are merely examples, not the only ones, and all changes within the scope of the present invention or the same range of the present invention are all surrounded by the present invention.

Claims

1. A knuckle arm characterized by: the steering device is provided with a first platform (1), a second platform (2) and an arm (3) for connecting the first platform (1) and the second platform (2), wherein the second platform (2) and the first platform (1) are not on the same front and back surfaces and are provided with an angle of 3-30 degrees according to the requirements of a steering system.

2. The knuckle arm according to claim 1, wherein: the arm (3) is provided with a curved surface S1 and a curved surface S2.

3. The knuckle arm according to claim 1, wherein: the knuckle arm ball pin point P1 is located at a position intermediate the inner and outer rotation angle limit points.

4. The knuckle arm according to claim 1, 2 or 3, wherein: the first platform (1) is connected with the steering knuckle (6) through a bolt, and the second platform (2) is connected with the steering drag link (4) through a ball pin; when the steering gear is turned, the steering drag link (4) is driven by the steering gear, the steering drag link (4) pushes the steering knuckle (6) to drive the whole wheel edge to rotate around the main pin by pushing the steering knuckle arm (5), and the steering drag link (7) is connected with the wheel edges on the two sides to realize the steering of the vehicle.