CN204196624U - A kind of independent suspension system integral type Top Crossbeam - Google Patents

Abstract

The utility model discloses an integral upper cross arm for an independent suspension system, which comprises a herringbone upper cross arm and a double threaded kingpin ball head. The herringbone upper cross arm has three ends, one of which is There is an inner threaded hole in the cross arm, one end of the double-threaded kingpin ball head is threaded in the inner threaded hole of the cross arm, and the other two ends are respectively provided with a stepped inner hole, and the axes of the two stepped inner holes It is a straight line, and the inner holes of each step are equipped with an adjustable longitudinal gap structure, and the axis of the inner threaded hole of the cross arm is roughly perpendicular to the axes of the inner holes of the two steps in space. The utility model has the advantages of easy assembly, low driving noise and convenient maintenance and replacement.

Description

Integral upper wishbone for an independent suspension system

technical field

The utility model relates to the field of automobile independent suspension, in particular to an integral upper cross arm.

Background technique

With the development of automobiles, with the continuous development of the expressway network, performance requirements such as vehicle handling stability and driving safety are becoming more and more important to people. However, traditional non-independent suspension vehicles are It is far from being able to meet people's requirements. The development of independent suspension vehicles has become an inevitable trend of automobile development.

There are many types of independent suspension structures, which can be divided into four categories according to the form of wheel motion: (1) suspensions in which the wheels swing in the transverse plane of the vehicle (cross-arm independent suspension); (2) suspensions in which the wheels swing in the longitudinal plane of the vehicle Suspension (trailing arm type independent suspension); (3) suspension where the wheel moves along the kingpin (candle suspension, MacPherson suspension); (4) suspension where the wheel swings in the oblique plane of the car Suspension (single wishbone independent suspension). The wishbone independent suspension is divided into two types: single wishbone and double wishbone. However, the single-wishbone suspension has the following disadvantages. When the suspension deforms, the tire wears seriously, and the kingpin inclination and wheel camber change greatly when turning. The double-wishbone independent suspension is divided into equal-length double-wishbone independent suspension and unequal-length double-wishbone independent suspension. The equal-length double-wishbone suspension also has the defect that the wheelbase changes greatly when the wheels jump up and down, which will increase the possibility of the wheels slipping sideways. The unequal-length double-wishbone can overcome the above shortcomings of the single-wishbone suspension and the equal-length double-wishbone suspension. The structural form and arrangement of the cross arm directly affect the handling stability, comfort and safety of the vehicle. However, most of the traditional cross arms are composed of cross arms and struts, which have defects such as difficult assembly, inaccurate positioning and difficult replacement. The noise generated by the driving of the vehicle and the stability of the whole vehicle are not enough, and the driving safety is facing a great test.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an integral upper cross arm for an independent suspension system with integral structure, easy assembly, low driving noise and easy maintenance and replacement.

In order to solve the problems of the technologies described above, the technical solution proposed by the utility model is:

An integral upper wishbone for an independent suspension system, comprising a herringbone upper wishbone and a double threaded kingpin ball joint, the herringbone upper wishbone has three ends, one of which is provided with a cross arm inner threaded hole, one end of the double-threaded kingpin ball head is threadedly connected to the internal threaded hole of the cross arm, and the other two ends are respectively provided with a stepped inner hole, and the axes of the two stepped inner holes are a straight line, each The inner holes of the steps are all equipped with adjustable longitudinal clearance structures, and the axes of the inner threaded holes of the cross arm and the axes of the inner holes of the two steps are approximately vertical in space.

As a further improvement to the above technical solution:

The adjustable longitudinal gap structure includes a cross arm bushing and an adjusting gasket for adjusting the longitudinal gap between the integral upper cross arm and the vehicle frame. The cross arm bushing is arranged in the inner hole of the step, and the adjusting pad Mounted on both ends of the cross arm bushing.

A locking washer is provided between the double-threaded kingpin ball head and the internal threaded hole of the cross arm.

The herringbone upper cross arm is an integral forged structure with a hollow structure.

Compared with the prior art, the utility model has the advantages of:

The independent suspension system of the utility model uses an integral upper cross arm, whose shape is similar to the Chinese character "人", and has a simple structure and good force transmission performance; the combination adjustment of the upper cross arm bush and the adjusting gasket is convenient for adjusting the cross arm and Longitudinal clearance of the frame ensures accurate positioning; integral forging is adopted, the process is simple and easy to assemble; the double threaded kingpin ball joint makes the disassembly and assembly of the cross arm simple.

Description of drawings

Fig. 1 is the structural schematic diagram of looking up of the utility model.

Fig. 2 is a left view structure diagram of the utility model.

Fig. 3 is a schematic diagram of the structure of the herringbone upper cross arm in the utility model.

illustration:

1. Herringbone upper cross arm; 2. Double threaded kingpin ball head; 3. Cross arm bushing; 4. Adjusting gasket; 5. Internal threaded hole of cross arm; 6. Hollow structure; 7. Step inner hole.

Detailed ways

In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively and in detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the utility model is not limited to the following specific embodiments.

As shown in Figures 1 to 3, the integral upper wishbone used in the independent suspension system of the present invention includes a herringbone upper wishbone 1, a double threaded kingpin ball head 2 and an adjustable longitudinal clearance structure. The upper cross arm 1 has three ends, one of which is provided with a cross arm internally threaded hole 5, and one end of the double-ended threaded kingpin ball head 2 is connected to the cross arm internally threaded hole 5 through threads, and an additional locking washer lock Tight, so that the connection between the herringbone upper wishbone 1 and the double threaded kingpin ball 2 is more reliable; the other end of the double threaded kingpin ball 2 is connected with the steering knuckle thread, so that the structure is simple and the connection is reliable. The other two ends of the herringbone upper cross arm 1 are respectively provided with a step inner hole 7, the two step inner holes 7 are coaxially arranged, and the step inner hole 7 is equipped with a longitudinal gap adjustable structure for adjusting the integral upper cross arm. Longitudinal clearance between arm and frame. The axes of the cross-arm internally threaded holes 5 and the axes of the two stepped internal holes 7 are approximately vertical in space. In order to consider the force and avoid interference, the traditional cross arm mostly adopts the combined upper cross arm and strut. However, the processing and assembly requirements of the cross arm and strut are relatively high. Very difficult. However, the integral upper cross arm of the utility model has a herringbone shape, which inherits the advantages of the combined cross arm, and has the advantages of simple structure, easy processing, and easy assembly and disassembly.

In this embodiment, the adjustable longitudinal gap structure includes a cross-arm bushing 3 and an adjusting gasket 4. The cross-arm bushing 3 is pressed into the inner hole 7 of the step with a slight fit, and the two ends of the cross-arm bushing 3 are adjusted by increasing or decreasing. Spacers 4 are used to adjust the longitudinal gap between the integral upper wishbone and the frame to achieve precise positioning and effectively solve the problems of inaccurate positioning of the combined upper wishbone and loud driving noise.

In this embodiment, the herringbone upper cross arm 1 adopts integral forging and hollow structure 6 . Not only is the structure simple and easy to assemble, but the hollow structure 6 effectively reduces the weight of the integral upper wishbone and reduces the cost of materials.

When the upper cross arm of the utility model is used in an independent suspension system, the upper and lower double cross arms, the steering knuckle and the vehicle frame form a four-bar linkage mechanism, and the left and right sides are independent of each other and do not affect each other.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (4)

1. An integral type upper wishbone for an independent suspension system, characterized in that: it comprises a herringbone upper wishbone and a double threaded kingpin ball joint, said herringbone upper wishbone has three ends, one of which is The head is provided with a cross-arm internal thread hole, and one end of the double-threaded kingpin ball head is threaded into the cross-arm internal thread hole, and the other two ends are respectively provided with a stepped inner hole, and the two stepped inner holes The axis is a straight line, and the inner holes of each step are equipped with adjustable longitudinal clearance structures, and the axis of the inner threaded hole of the cross arm is roughly perpendicular to the axes of the inner holes of the two steps in space. 2. The integral upper wishbone for independent suspension system according to claim 1, characterized in that: the adjustable longitudinal clearance structure comprises a wishbone bushing and a longitudinal clearance for adjusting the integral upper wishbone and the vehicle frame Adjusting pads, the cross-arm bushing is installed in the inner hole of the step, and the adjusting pads are installed at both ends of the cross-arm bushing. 3. The integrated upper wishbone for independent suspension system according to claim 2, characterized in that: a locking washer is provided between the double-threaded kingpin ball end and the inner threaded hole of the wishbone. 4. The integral upper wishbone for an independent suspension system according to any one of claims 1 to 3, characterized in that: the herringbone upper wishbone is an integral forged structure with a hollow structure.