CN203666317U

CN203666317U - McPherson independent suspension

Info

Publication number: CN203666317U
Application number: CN201320890417.0U
Authority: CN
Inventors: 刘守银
Original assignee: Anhui Jianghuai Automobile Group Corp
Current assignee: Anhui Jianghuai Automobile Group Corp
Priority date: 2013-12-30
Filing date: 2013-12-30
Publication date: 2014-06-25
Anticipated expiration: 2023-12-30

Abstract

The utility model provides a McPherson independent suspension which comprises a knuckle, a lower swing arm with the outer end connected with the knuckle and the inner end connected with a vehicle body, and a shock absorber with the lower end connected with the knuckle and the upper end connected with a rubber mat through a knuckle bearing, the rubber mat is fixed on a rubber mat support in a sulfuration mode, and the rubber mat support is fixed on the vehicle body. The McPherson independent suspension can well eliminate the lateral force influence of the rubber mat on the shock absorber when wheels move up and down, the service life of the shock absorber is prolonged, and vehicle driving comfort is improved.

Description

A kind of macpherson suspension

Technical field

The utility model relates to automotive suspension field, is specifically related to macpherson suspension.

Background technology

Automotive suspension mainly comprises MacPherson type, two fork arm type equal, many link-types etc., and wherein macpherson suspension is because it is simple in structure, compact being widely adopted.Shock absorber piston rod (as strut and the guide rail) upper end of macpherson suspension is connected with vehicle body by rubber pad, and shock absorber urceolus lower end is fixed on steering swivel; Coil spring is arranged on shock absorber more, is also arranged on lower swing arm and subframe, and the vehicle having in addition is also arranged on torsion bar spring, air bellow, composite material plate spring etc. on lower swing arm and subframe; Lower swing arm inner side is connected on subframe with bolt and nut, and it is upper that outside is connected to steering swivel (or hub) by ball pin, and stabilizer rod middle part is fixed on subframe, and two ends are connected on lower swing arm or on shock absorber by stabilizer link.There is subframe in some vehicles, subframe is fixed on vehicle body, and some vehicles do not have independent subframe, and the sprung parts being connected on subframe is just directly connected on vehicle body.

In the time of wheel upward movement, shock absorber is compressed effect, produces compression damping power, and compression damping masterpiece is used on rubber pad, and rubber pad plays certain buffer action; In the time that wheel moves downward, shock absorber is subject to stretching action, produces stretching dumping force, and stretching dumping force acts on rubber pad, and rubber pad plays certain buffer action equally.

In prior art, shock absorber and rubber pad are fixed together, shock absorber inner piston rod is vertical with the attachment face of rubber pad under free state, and shock absorber axis non-perpendicular to road surface, but deflection certain angle, in the time of wheel up-and-down movement, shock absorber is just subject to the effect of transverse force, rubber pad distortion, correspondingly shock absorber piston rod and rubber pad attachment face produce certain drift angle, now because the rubber Shao Er hardness of rubber pad is generally in 70 left and right, can produce very large lateral action power to piston rod, drift angle is larger, and application force is just larger.Shock absorber side force is larger, the friction drag of the relative motion between cylinder body and the piston of shock absorber is just larger, shock absorber internal temperature also can be more and more higher, shock absorber parts just easily damage, simultaneously, ride comfort and the traveling comfort of vehicle also decrease, and this is also one of major defect of McPherson suspension.

In prior art in order to reduce the impact of side force in McPherson suspension, the measure of mainly taking be under this conventional strained condition of suspension at full load from attachment point start to make the outside shape in relative shock absorber center, coil spring center in an angle, allow this angle produces side force carry out the side force that offset wheel is upper and lower produced.But this method can only be eliminated the side force of a state, and in vehicle movement process, side force constantly changes along with wheel up-and-down movement, and when overload, side force is larger, and unloaded side force reduces, and more hour side force direction is reverse for wheel load.In any case optimize, just eliminate the side force of a state, the fundamentally omnidistance side force of eliminating.

Utility model content

The purpose of this utility model is to overcome the problems referred to above, the impact of the side force that the rubber pad of the automobile of reduction employing McPherson suspension in real road driving process produces shock absorber, thereby the service life of improving driver comfort and shock absorber.

For achieving the above object, embodiment of the present utility model provides following technical scheme:

A kind of macpherson suspension, comprising: steering swivel; Lower swing arm, described lower swing arm outer end connects described steering swivel, the inner vehicle body that connects; Shock absorber, described shock absorber lower end connects steering swivel, and upper end connects rubber pad by oscillating bearing; Described rubber pad sulfuration is fixed on rubber bearing, and described rubber bearing is fixed on vehicle body.

Preferably, described rubber pad is arranged on rubber bearing, and described rubber bearing below is fixedly connected with U-shaped holder, and described U-shaped holder is connected with described oscillating bearing by bearing pin, and described oscillating bearing is arranged on described shock absorber upper end.

Preferably, described macpherson suspension also comprises damper spring, and described damper spring is arranged on described shock absorber or is arranged on described lower swing arm.

Preferably, described macpherson suspension also comprises subframe, and described subframe is fixed on vehicle body, and described lower swing arm one end connects described steering swivel by ball pin, and the other end connects described subframe by bolt and nut.

Preferably, described macpherson suspension also comprises stabilizer rod, and described stabilizer rod centre portion is fixed on described subframe, and two ends connect described lower swing arm by stabilizer bar connecting bar.

Preferably, also there is sleeve in described macpherson suspension, and described rubber pad and described rubber bearing, sleeve sulfuration are integrated.

Preferably, bolt is used nut locking through after described rubber pad, described rubber bearing and described U-shaped holder.

Preferably, threaded portion, described oscillating bearing lower end is arranged on described shock absorber upper end with nut.

In the utility model, be flexibly connected owing to having adopted oscillating bearing to realize between shock absorber and rubber pad, therefore in the time of wheel up-and-down movement, angle between shock absorber piston rod and rubber pad attachment face vertical line and the side force that produces can be eliminated due to the activity of oscillating bearing, and then, driver comfort, ride comfort improve, and shock absorber extends service life.And in vehicle drive process, the activity of oscillating bearing meets wheel movement stroke, the omnidistance side force of eliminating.

Brief description of the drawings

Next in connection with accompanying drawing, specific embodiment of the utility model is described in further detail, wherein:

Fig. 1 is the macpherson suspension schematic diagram in prior art one;

Fig. 2 is the macpherson suspension schematic diagram in prior art two;

Fig. 3 is the front view of macpherson suspension in embodiment of the present utility model;

Fig. 4 is the left view of macpherson suspension in embodiment of the present utility model;

Fig. 5 is the partial enlarged drawing of the I part in Fig. 4;

Fig. 6 is the cutaway view along the A-A line in Fig. 5.

Description of symbols in upper figure: steering swivel 1, lower swing arm 2, subframe 3, stabilizer rod 4, stabilizer bar connecting bar 5, coil spring 6, shock absorber 7, rubber bearing 8, rubber pad 9, ball pin 10, taper pad 11, lining 12, oscillating bearing 13, U-shaped holder 14, bearing pin 15, sleeve 16.

Detailed description of the invention

In ensuing description, on vehicle width direction, taking close wheel one side as outside, taking axis one side near automobile fore-and-aft direction as inner side.In embodiment of the present utility model, have subframe, subframe is contained on vehicle body, and those of ordinary skill in the art also can be applied to embodiment of the present utility model on the automobile without subframe easily.

With reference to figure 1, it shows the macpherson suspension structure in prior art one.The outer end of lower swing arm 2 connects steering swivel 1 by ball pin 10 pivotables, inner by lining auxiliary connection vehicle frame 3.Shock absorber 7 lower ends connect steering swivel 1, and upper end connects rubber bearing 8 and rubber pad 9.Coil spring 6 is arranged on shock absorber 7, and now rubber bearing 8 is also as the upper bracket of coil spring 6.The centre portion of stabilizer rod 4 is fixed on subframe 3 by stabilizer bar bushing, and two ends connect shock absorber 7 by stabilizer bar connecting bar 5.Rubber pad 9 sulfuration is fixed on rubber bearing 8, rubber bearing 8 is fixed on vehicle body with nut.

With reference to figure 2, it shows the macpherson suspension structure in prior art two.Different from Fig. 1, in Fig. 2, first, coil spring 6 is mounted on lower swing arm 2; Secondly, stabilizer bar connecting bar 5 is to be also connected on lower swing arm 2.

In the prior art shown in Fig. 1 and Fig. 2, rubber pad 9 is all fixedly connected with the top of shock absorber 7, and shock absorber 7 be not orthogonal to ground, but there is drift angle with vertical direction, the in the situation that of road injustice, when wheel up-and-down movement, rubber pad 9 is out of shape to shock absorber 7 and produces side force, cause shock absorber heating, wearing and tearing, reduce service life.Although in the structure in Fig. 1, the relative shock absorber line of centers of coil spring line of centers is outwards preset an angle, eliminates the side force of fully laden, can not eliminate the side force of wheel up-and-down movement whole process.

With reference to figure 3, Fig. 4, compared with prior art in Fig. 2, in embodiment of the present utility model, the top of shock absorber 7 connects rubber pad 9 by oscillating bearing 13.

With reference to figure 5, Fig. 6, it has specifically illustrated the mounting structure of rubber pad 9 with oscillating bearing 13, shock absorber 7.Rubber pad 9 is arranged on rubber bearing 8, and as shown in Figure 6, preferably rubber pad 9 and rubber bearing 8 sulfurations is integrated.Below rubber bearing 8, be fixedly connected with U-shaped holder 14 by modes such as welding, riveted joint, bolt connections.In the present embodiment, have sleeve 16, rubber pad 9 is integrated with rubber bearing 8, sleeve 16 sulfurations.By sleeve 16, bolt is used nut locking through after rubber pad 9, rubber bearing 8 and U-shaped holder 14.

Bearing pin 15 passes the joint portion centre hole of oscillating bearing 13 and the lower end via hole of U-shaped holder 14, thereby U-shaped holder 14 is connected with oscillating bearing 13 by bearing pin 15, and then oscillating bearing 13 threaded portions, lower end are arranged on shock absorber 7 upper ends with nut.

Oscillating bearing 13 has been realized being flexibly connected between rubber pad 9 and shock absorber 7, therefore, in the time of wheel up-and-down movement, between rubber pad 9 and shock absorber 7, can have certain activity, thereby has eliminated the lateral action power that rubber pad 9 produces shock absorber 7.Change when not being king-sized in vehicle, no longer need the design parameter of suspension to calculate to optimize side force, and activity relatively between rubber pad 9 and shock absorber 7 also can be according to the different and variation automatically of road conditions.

Certainly, it should be understood by one skilled in the art that between the shock absorber 7 of the macpherson suspension shown in Fig. 1 and rubber pad 9 and also can adopt the structure of utilizing oscillating bearing 13 to be connected as indicated in Fig. 5, Fig. 6.Or the connection structure in Fig. 5, Fig. 6 also can be applied in the macpherson suspension of other type.

Although the utility model is described in conjunction with above embodiment, but the utility model is not defined to above-described embodiment, those of ordinary skill in the art can easily modify to it and change, but do not leave essence design of the present utility model and scope.

Claims

1. a macpherson suspension, is characterized in that, comprising:

Steering swivel;

Lower swing arm, described lower swing arm outer end connects described steering swivel, the inner vehicle body that connects;

Shock absorber, described shock absorber lower end connects steering swivel, and upper end connects rubber pad by oscillating bearing;

Described rubber pad sulfuration is fixed on rubber bearing, and described rubber bearing is fixed on vehicle body.

2. macpherson suspension according to claim 1, is characterized in that, described rubber bearing below is fixedly connected with U-shaped holder, and described U-shaped holder is connected with described oscillating bearing by bearing pin, and described oscillating bearing is arranged on described shock absorber upper end.

3. macpherson suspension according to claim 1 and 2, is characterized in that, also comprises damper spring, and described damper spring is arranged on described shock absorber or is arranged on described lower swing arm.

4. macpherson suspension according to claim 1 and 2, is characterized in that, also comprises subframe, and described subframe is fixed on vehicle body, and described lower swing arm one end connects described steering swivel by ball pin, and the other end connects described subframe by bolt and nut.

5. macpherson suspension according to claim 4, is characterized in that, also comprises stabilizer rod, and described stabilizer rod centre portion is fixed on described subframe, and two ends connect described lower swing arm by stabilizer bar connecting bar.

6. macpherson suspension according to claim 2, is characterized in that, also has sleeve, and described rubber pad and described rubber bearing, sleeve sulfuration are integrated.

7. macpherson suspension according to claim 6, is characterized in that, bolt is used nut locking through after described rubber pad, described rubber bearing and described U-shaped holder.

8. macpherson suspension according to claim 1, is characterized in that, threaded portion, described oscillating bearing lower end is arranged on described shock absorber upper end with nut.