CN2815813Y

CN2815813Y - Front axle oscillating arm steering damping device

Info

Publication number: CN2815813Y
Application number: CN 200520073961
Authority: CN
Inventors: 王剑锋; 朱宝锁
Original assignee: Nanjing Changan Automobile Co Ltd
Current assignee: Nanjing Changan Automobile Co Ltd
Priority date: 2005-07-27
Filing date: 2005-07-27
Publication date: 2006-09-13
Anticipated expiration: 2015-07-27

Abstract

The utility model relates to the structure improvement of a front shaft steering damping device. The device comprises a steering device driven by slide, a steering knuckle relatively fixed to a wheel shaft, a steering pull rod, both ends of which are respectively hinged with one end of the steering device and one end of the steering knuckle, and a front shaft swing arm, wherein the front shaft swing arm comprises three hinges distributed in a triangle mode. A first hinge is a plane hinge and is hinged with the other end of the steering knuckle. A second hinge is a spherical hinge, a reference shaft of which is fundamentally parallel to the first hinge. A third hinge is a plane hinge, the shaft line of which passes through the center of the second hinge. The second hinge and the third hinge are respectively hinged with a front suspension assembly fixed to a vehicle body. After the structure of the utility model is adopted, when wheels are bumped and bounced, the front shaft swing arm can rotate around the shaft line of the third hinge within a certain range in a swing mode. Thereby, bump can be prevented from being directly transferred to the vehicle body and a vibration isolation function is performed. Meanwhile, under the constraint of the second and the third hinges, the front shaft swing arm can perform the role of limiting the wheels from swing left and right.

Description

The front axle swing arm turns to shock attenuation unit

Technical field

The utility model relates to a kind of motor turning shock attenuation unit, especially a kind of structural development of front-axle steering shock attenuation unit.

Background technology

One of various automobile important mechanism that the front-axle steering shock attenuation unit is.Its basic requirement is under the prerequisite that does not influence the Vehicular turn alerting ability, can guarantee that vehicle steadily advances, and have the favorable damping performance.

Retrieval finds, the applying date is that 1992.03.20, application number are that 92214283.1 Chinese patent discloses a kind of automobile front-axle assembly, adopts the double cross arm independent suspension structure.Upper arm, underarm, steering swivel and vehicle frame form four-bar linkage, and the left and right sides is independent mutually, is independent of each other, and has therefore reduced vehicle frame and body vibrations.In addition, the suspension elastic element adopts torsion bar spring, and the suffered impact load of nonspring carried mass and suspension is reduced, and vehicle running smoothness improves.Front brake adopts the float type caliper disc, have the outer brake-shoe clearance of automatic compensation brake disc and valve function, braking reliability, simple to operate, adopt no stub formula steering structure ball pin both to do the rotating shaft center of upper and lower arm motion, having held concurrently again turns to the effect of stub.

Yet the applicant finds that existing vehicle when the wheel bob, occurs deflecting easily, and is therefore influential to the stability and safety of advancing in the vibration of jolting.

The utility model content

The purpose of this utility model is: at the shortcoming of above prior art existence, propose a kind of under the prerequisite that does not influence Vehicular turn alerting ability and good vibration damping, thereby effectively the limiting wheel left and right sides amplitude of oscillation guarantees that the steadily safe front axle swing arm of advancing of vehicle turns to shock attenuation unit.

In order to reach above purpose, the deflector that front axle swing arm of the present utility model turns to shock attenuation unit to comprise slippage to drive, with the relatively-stationary steering swivel of axletree, two ends respectively with deflector and steering swivel one end pivotally attached tierod, also comprise the front axle swing arm, described front axle swing arm contains three hinges that are triangle distribution, first hinge is a plane hinge, and is hinged with the other end of steering swivel; Second hinge is the reference axis spherical hinge substantially parallel with first hinge; The 3rd hinge is the plane hinge that axis passes through the second hinge center, and the second and the 3rd hinge is hinged with the forward mounting assembly that is fixed on the vehicle body respectively.

After adopting structure of the present utility model, when wheel jolts when beating, the front axle swing arm can be around the rotation within the specific limits of the 3rd hinge axes, thereby avoid being directly delivered to vehicle body with jolting, play the vibration isolation effect, simultaneously, second and triple hinged constraint under, the front axle swing arm can be played the effect that limiting wheel swings.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the schematic diagram of mechanism of an embodiment of the utility model.

Fig. 2 is the structural representation of front axle swing arm among Fig. 1.

Fig. 3 is the left view of Fig. 2.

The specific embodiment

Embodiment one

The front axle swing arm of present embodiment turns to shock attenuation unit as shown in Figure 1, and deflector 1 can left and right sides slippage in front axle support, and drive wheels turns to.The two ends of deflector 1 are hinged with the tierod 2 of both sides respectively.One end of the other end of tierod and steering swivel 3 is hinged.The wheel shaft relative fixed of steering swivel and wheel 4, its inboard end is hinged at B place and front axle swing arm 5.

The concrete structure of front axle swing arm 5 contains three hinges of A, B, C that are triangle distribution as shown in Figure 2.The first hinge B is a plane hinge, and is hinged with the other end of steering swivel 3.The second hinge C is the reference axis spherical hinge substantially parallel with first hinge, and this spherical hinge is made of the hinge cover 5-3 that press fit over outer shroud 5-5 in the front axle swing arm 5, becomes the ball pivot ring 5-4 of running-fit with outer shroud and be fixed on ball pivot ring center.The 3rd hinge A is the plane hinge that axis passes through the second hinge B center, is made of the axle sleeve 5-2 that press fit over the overcoat 5-1 in the front axle swing arm 5 and press fit in this overcoat.During assembling, the second and the 3rd hinge is respectively by hinge axis, and is hinged with the forward mounting assembly that is fixed on the vehicle body.

The front axle swing arm that experiment showed, present embodiment turns to the effectively limiting wheel left and right sides amplitude of oscillation of shock attenuation unit, has the good advantage of vibration isolating effect.

In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1. a front axle swing arm turns to shock attenuation unit, comprise deflector that slippage drives, with the relatively-stationary steering swivel of axletree, two ends respectively with deflector and steering swivel one end pivotally attached tierod, it is characterized in that: also comprise the front axle swing arm, described front axle swing arm contains three hinges that are triangle distribution; First hinge is a plane hinge, and is hinged with the other end of steering swivel; Second hinge is the reference axis spherical hinge substantially parallel with first hinge; The 3rd hinge is the plane hinge that axis passes through the second hinge center, and the second and the 3rd hinge is hinged with the forward mounting assembly that is fixed on the vehicle body respectively.

2. described front axle swing arm turns to shock attenuation unit according to claim 1, it is characterized in that: described spherical hinge is made of the hinge cover that press fit over outer shroud in the front axle swing arm, becomes the ball pivot ring of running-fit with outer shroud and be fixed on ball pivot ring center.

3. described front axle swing arm turns to shock attenuation unit according to claim 2, it is characterized in that: described the 3rd hinge is made of the axle sleeve that press fit over the overcoat in the front axle swing arm and press fit in this overcoat.