CN204077276U - Compound type passenger vehicle rear suspension - Google Patents

Abstract

The purpose of this utility model is to provide a kind of novel compound type passenger vehicle rear suspension.For realizing the compound type passenger vehicle rear suspension of described object, be included between vehicle frame and vehicle bridge along steel spring, air bellow that vehicle body is longitudinally arranged, the two ends of steel spring all adopt hinge pin and hanger to be fixed on vehicle frame, vehicle bridge is fixed on the middle part of steel spring, be characterized in, air bellow is also arranged on the middle part of steel spring, and air bellow is fixedly connected with vehicle frame by upper bracket, and is fixedly connected with vehicle bridge by lower bracket.

Description

Compound type passenger vehicle rear suspension

Technical field

The utility model relates to passenger vehicle rear suspension.

Background technology

The rear suspension of passenger-carrying chassis generally uses steel spring structure, though structure is simple, Rigidity and strength can ensure.But its stability and traveling comfort can not accept by people.In routine use, often can be subject to the recoil of wheel, and the bump rubber arranged in the middle of steel spring is due to meeting aging (damage) of accumulating over a long period.In order to avoid this shortcoming, there is the compound type rear suspension comprising steel spring and air bellow.

Notification number is that the Chinese utility model patent document of " CN2837127Y " is bad for existing plate spring suspension brackets ride comfort, the transformation difficulty of plate spring suspension brackets is large, can utilize limited space, change the feature that work capacity is large, cost is high, proposes the rear composite air suspension assembly of a kind of passenger-carrying chassis.U-bolt wherein in the both sides of vehicle frame from top to bottom except through leaf spring upper cover plate, leaf spring, leaf spring lower connecting plate, except vehicle bridge, also through a taper liner plate and an air bag trailing arm beam and a trailing arm beam lower connecting plate, and make it to link together, two air bellows are fixed by air bellow lower connecting base in the both sides of air bag trailing arm beam, attempt the advantage taking into account plate spring suspension brackets and air suspension like this.

The present inventor finds that another kind comprises the compound type rear suspension of steel spring and air bellow in practice.

Utility model content

The purpose of this utility model is to provide a kind of novel compound type passenger vehicle rear suspension.

For realizing the compound type passenger vehicle rear suspension of described object, be included between vehicle frame and vehicle bridge along steel spring, air bellow that vehicle body is longitudinally arranged, the two ends of steel spring all adopt hinge pin and hanger to be fixed on vehicle frame, vehicle bridge is fixed on the middle part of steel spring, be characterized in, air bellow is also arranged on the middle part of steel spring, and air bellow is fixedly connected with vehicle frame by upper bracket, and is fixedly connected with vehicle bridge by lower bracket.

Described compound type passenger vehicle rear suspension, its further feature is, upper bracket comprises a diapire and from the left and right side arm that diapire upwards extends; Described diapire is connected with the upside of air bellow by fastener, left and right side arm is clamped about vehicle frame, to realize the location of air bellow in vehicle body Y-direction, left and right side arm is also fixedly connected with vehicle frame by fastener, with realize air bellow vehicle body X to location, described diapire is fixedly connected with vehicle frame by fastener, to realize the location of air bellow in vehicle body Z-direction.

Described compound type passenger vehicle rear suspension, its further feature is, described upper bracket is drawing integral piece.

Described compound type passenger vehicle rear suspension, its further feature is, the part that left and right side arm is also fixedly connected with vehicle frame by fastener and left and right side arm exist breach by between the part of clamping about vehicle frame.

Described compound type passenger vehicle rear suspension, its further feature is, the part that the left and right sides level of described diapire is given prominence to is connected with the upside of air bellow by fastener, and this level part of giving prominence to and left or right side arm are by complementary for the notch geometry in the part of clamping about vehicle frame.

Described compound type passenger vehicle rear suspension, its further feature is, the levelling valve of air bellow be also arranged on upper bracket in the part of diapire downward bending.

Described compound type passenger vehicle rear suspension, its further feature is, the part be connected with upper bracket of vehicle frame is U-steel, and this U-steel is welded with base plate, and forming connecting bore on which floor plate, the diapire of upper bracket is connected by fastener with the connecting bore of this base plate.

Described compound type passenger vehicle rear suspension, its further feature is that lower bracket comprises upper piece and lower piece, and vehicle bridge is held tightly by upper piece and lower piece, and upper and lower lamellar body is secured to one another by fastener, and upper piece is connected by fastener with the downside of air bellow.

Described compound type passenger vehicle rear suspension, its further feature is, in vehicle bridge, hydraulic telescopic shock absorber and Panhard rod are also housed.

The utility model is owing to have employed air bellow, and it is arranged in the middle part of leaf spring, and no matter gas spring is in stability, should all than leaf spring on traveling comfort, therefore keep the advantage of raw steel laminated spring, turn increase the feature of air bellow, overcome the defect of original bump rubber.

Accompanying drawing explanation

The above and other feature of the present utility model, character and advantage become more obvious by passing through below in conjunction with the description of drawings and Examples, wherein:

Fig. 1 is the front view of the compound type passenger vehicle rear suspension in the utility model embodiment.

Fig. 2 is the decomposition view of air bellow and upper and lower support thereof in Fig. 1.

Fig. 3 is the front view in Fig. 1 under the assembled state of air bellow between vehicle frame and vehicle bridge.

Detailed description of the invention

Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail; set forth more details in the following description so that fully understand the utility model; but the utility model obviously can be implemented with multiple this alternate manner described that is different from; those skilled in the art can when doing similar popularization, deduction without prejudice to when the utility model intension according to practical situations, therefore should with the content constraints of this specific embodiment protection domain of the present utility model.

It should be noted that Fig. 1 to Fig. 3 all only exemplarily, it is not draw according to the condition of equal proportion, and should not be construed as limiting in this, as to the protection domain of the utility model actual requirement.

In FIG, left side is the front of the longitudinal direction of vehicle body, and right side is the longitudinal direction of vehicle body, and leaf spring (steel spring) 3 is longitudinally arranged along vehicle body.Fig. 1 only sees the suspended portion in the left side of rear suspension, similarly, also such structure is provided with on the right side of vehicle body, vehicle bridge 2 is generally arrange according to dependent mode, connect the wheel of the left and right sides, vehicle bridge 2 left-right parts is also connected by stabilizer rod 6, in addition, is also provided with hydraulic telescopic shock absorber 5 between vehicle bridge 2 and vehicle frame 1.The forward and backward two ends of leaf spring 3 are all connected on vehicle frame 2.Air bellow 4 is also connected with between the middle part of leaf spring 3 and vehicle frame 2.

Continue, with reference to Fig. 1, corresponding to the front end of leaf spring 3, vehicle frame 2 to be provided with plate spring front bracket 31A, hanger 30A before plate spring front bracket 31A is also provided with.Corresponding to the rear end of leaf spring 3, vehicle frame 2 is provided with leaf spring after poppet 31B, hanger 30B after leaf spring after poppet 31B is also provided with, the front end of leaf spring 3 is connected with front hanger 30A by hinge, and rear end is connected with rear hanger 30B by hinge.Rear hanger 30B is movable hanger.In other embodiments, it is movable front hanger 30A can be set to, and then hanger 30B is set to fix.

The setting position of air bellow 4 is generally the bump rubber of leaf spring 3, now air bellow 4 be substituted for bump rubber, therefore just can keep away the catabiosis that bump rubber exists owing to being subject to frequent recoil.Further, also retains the advantage of leaf spring 3, in addition air bellow 4 connecting vehicle frame and vehicle bridge, traveling comfort and stability can also be promoted.

Air bellow 4 also can be referred to as air bag, balloon-type cylinder, leather bag cylinder, for curve sac type structure, its bent capsule number is generally 1 ~ 3 bent capsule, but also can be designed and manufactured into sleeve formula, membrane type, band type air bellow as required, can also under certain condition two bellows type air spring superpositions be used.

Fig. 2 and Fig. 3 show a kind of can reliably and easily by upper and lower supporting structure that air bellow is fixing.But, in other embodiments of the present utility model, upper and lower supporting structure can also adopt other versions, can be change or the modification of the structure shown in Fig. 2, Fig. 3.

As shown in Figure 2, upper bracket 41 comprises a diapire 411 and from the left and right side arm 412 that diapire 411 upwards extends.Diapire 411 (is such as bolt by fastener, do not illustrate in the drawings) be connected with the upside of air bellow 4, vehicle frame about 1 is clamped by left and right side arm 412, to realize the location of air bellow 4 in vehicle body Y-direction, left and right side arm 412 is also fixedly connected with vehicle frame 1 by fastener (bolt 431, nut 432), with realize air bellow 4 vehicle body X to location, diapire 411 is fixedly connected with vehicle frame 1 by fastener (bolt 430), to realize the location of air bellow in vehicle body Z-direction.

Upper bracket 41 can be that machinework is shaped, but preferably drawing.For drawing part, left and right side arm 412 is shaped by flanging process, and in turn-up process, retain the part of Reference numeral 413, just opening is formed like this at left and right side arm 412, and the part of Reference numeral 413 just becomes the horizontal continuation that diapire connects the upside of air bellow 4, horizontal continuation 413 is fixedly connected with by the upside of fastener 430 with air bellow 4.In addition, the part of the Reference numeral 414 of left and right side arm 412 retains, and punching lacks a part, form breach, like this can expendable weight, bolt 431 is through a part 414 for left and right side arm, simultaneously through vehicle frame 1, more fastening by nut 432, so just can realize the location of air bellow 3 in vehicle body X-direction.The part 414 of the connection fixing with vehicle frame 1 of left and right side arm is what to be separated with the part 412 of clamping vehicle frame about 1, is respectively used to the location in vehicle body X, Y-direction realizing air bellow 3.Vehicle body X-direction and vehicle body longitudinal direction or fore-and-aft direction, Y-direction and transverse direction or left and right directions, Z-direction and above-below direction.

Upper bracket 41 also has the part 415 from diapire 411 downward bending of the levelling valve 45 installing air bellow 4.

The part be connected with upper bracket 41 of vehicle frame 1 is generally U-steel, for this reason, provides base plate 44, base plate 44 welds with U-steel, and connecting bore is formed on base plate 44, the diapire 41 of upper bracket 41 is connected by fastener with the connecting bore of base plate 44, so just can realize Z-direction and located.

Continue with reference to Fig. 2, lower bracket 42 comprises upper piece 42A and lower piece 42B, and vehicle bridge 2 is held tightly by upper piece 42A and lower piece 42B, and upper and lower lamellar body 42A, 42B are by fastener 420,421 secured to one another, and upper piece 42A is connected by fastener with the downside of air bellow 4.Because lower bracket 42 is made up of upper and lower lamellar body, vehicle bridge is held tightly, without the need to punching in vehicle bridge, the structural strength of vehicle bridge is not affected, in addition just can by fastening for upper and lower lamellar body and hold vehicle bridge tightly by means of the fastener as bolt one class, therefore easy to connect, and firmly.

Embodiment of the present utility model is owing to have employed air bellow 4, and it is arranged in the middle part of leaf spring, and gas spring 4, should all than leaf spring on traveling comfort no matter in stability.Further, also keep the advantage of raw steel laminated spring, turn increase the feature of air bellow.

Although the utility model with preferred embodiment openly as above, it is not that any those skilled in the art, not departing from spirit and scope of the present utility model, can make possible variation and amendment for limiting the utility model.Therefore, every content not departing from technical solutions of the utility model, any amendment done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all fall within protection domain that the utility model claim defines.

Claims (9)

1. compound type passenger vehicle rear suspension, be included between vehicle frame and vehicle bridge along steel spring, air bellow that vehicle body is longitudinally arranged, the two ends of steel spring all adopt hinge pin and hanger to be fixed on vehicle frame, vehicle bridge is fixed on the middle part of steel spring, it is characterized in that, air bellow is also arranged on the middle part of steel spring, and air bellow is fixedly connected with vehicle frame by upper bracket, and is fixedly connected with vehicle bridge by lower bracket.

2. compound type passenger vehicle rear suspension as claimed in claim 1, is characterized in that, upper bracket comprises a diapire and from the left and right side arm that diapire upwards extends; Described diapire is connected with the upside of air bellow by fastener, left and right side arm is clamped about vehicle frame, to realize the location of air bellow in vehicle body Y-direction, left and right side arm is also fixedly connected with vehicle frame by fastener, with realize air bellow vehicle body X to location, described diapire is fixedly connected with vehicle frame by fastener, to realize the location of air bellow in vehicle body Z-direction.

3. compound type passenger vehicle rear suspension as claimed in claim 2, it is characterized in that, described upper bracket is drawing integral piece.

4. compound type passenger vehicle rear suspension as claimed in claim 3, is characterized in that, the part that left and right side arm is also fixedly connected with vehicle frame by fastener and left and right side arm exist breach by between the part of clamping about vehicle frame.

5. compound type passenger vehicle rear suspension as claimed in claim 4, it is characterized in that, the part that the left and right sides level of described diapire is given prominence to is connected with the upside of air bellow by fastener, and this level part of giving prominence to and left or right side arm are by complementary for the notch geometry in the part of clamping about vehicle frame.

6. compound type passenger vehicle rear suspension as claimed in claim 3, is characterized in that, the levelling valve of air bellow be also arranged on upper bracket in the part of diapire downward bending.

7. compound type passenger vehicle rear suspension as claimed in claim 2, it is characterized in that, the part be connected with upper bracket of vehicle frame is U-steel, and this U-steel is welded with base plate, and forming connecting bore on which floor plate, the diapire of upper bracket is connected by fastener with the connecting bore of this base plate.

8. compound type passenger vehicle rear suspension as claimed in claim 1, it is characterized in that, lower bracket comprises upper piece and lower piece, and vehicle bridge is held tightly by upper piece and lower piece, and upper and lower lamellar body is secured to one another by fastener, and upper piece is connected by fastener with the downside of air bellow.

9. compound type passenger vehicle rear suspension as claimed in claim 1, is characterized in that, vehicle bridge is also equipped with hydraulic telescopic shock absorber and Panhard rod.