CN2612555Y

CN2612555Y - Automobile two stage damping device

Info

Publication number: CN2612555Y
Application number: CN 03215950
Authority: CN
Inventors: 林志龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-21
Filing date: 2003-03-21
Publication date: 2004-04-21
Anticipated expiration: 2013-03-21

Abstract

A vehicle secondary damping device comprises a dragger and an air sac damping, wherein the dragger comprises two trailing arms (1) and (2) flexibly hinged with each other, the trailing arm (1) is hinged with the wagon socket while the trailing arm (2) is hinged with the girder, the air sac damping comprises a supporting axle, a guiding base, an air sac, and an air sac base, the supporting axle through the guiding base enables to move flexibly, the upper end of the supporting axle is connected with the wagon socket while the lower end is connected with the air sac which is installed in the air sac base, a shock rubber cushion is installed at the matching point of the supporting axle and the guiding base. The utility model enables to ease the shake and strike caused by the vehicle mechanical drive and the unsmooth of the road obviously and therefore improves the ride comfort.

Description

Automobile secondary shock absorption device

One, technical field

The utility model relates to a kind of automobile shock-absorber.

Two, background technology

Existing automobile shock-absorber, all be mounted between forward and backward bridge of automobile and the crossbeam, this device can alleviate vibrations and the impact that Uneven road causes in the vehicle traveling process effectively, but can't alleviate the vibrations that automobile self mechanical drive causes, has influenced the traveling comfort that the passenger takes.

Three, summary of the invention

The purpose of this utility model provides a kind of automobile secondary shock absorption device that can alleviate the vibrations that automobile self mechanical drive brings significantly.

For this purpose, the utility model adopts following technical scheme: automobile secondary shock absorption device, it is arranged between automobile bodies base and the crossbeam, comprise trailer coupling and air bag damping, described trailer coupling comprises draft arm (1), (2), the upper end and the compartment base of draft arm (1) is hinged, the upper end of lower end and draft arm (2) is movably hinged, and the lower end and the crossbeam of draft arm (2) are hinged; Described air bag damping comprises bolster, guide holder, air bag, gasbag seat, the bolster activity is arranged in the guide holder, its upper end is connected with the compartment base, the lower end is connected with air bag, air bag is fixedly arranged in the gasbag seat, bolster and guide holder cooperation place are provided with the damping rubber cushion, and gasbag seat and guide holder are fixedly arranged on the crossbeam.

The utility model is on the basis of the one-level suspension gear of forward and backward bridge of automobile and crossbeam, set up the secondary shock absorption device that constitutes by trailer coupling and air bag damping, can alleviate the vibrations that the automobile mechanical transmission causes significantly, simultaneously also can further alleviate vibrations and the impact that Uneven road causes, reduce the noise in the compartment, greatly improve ride of vehicle.

Four, description of drawings

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the structural representation of automobile secondary shock absorption device.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the partial enlarged drawing (structure of air bag damping is shown) of A part among Fig. 2.

Fig. 4 is the structural representation of trailer coupling in this device.

Fig. 5 is the cutaway view along B-B direction among Fig. 4.

Fig. 6 is the scheme of installation of this device guiding seat.

Fig. 7 is the left view of Fig. 6.

Fig. 8 is the birds-eye view of Fig. 6.

Fig. 9 is the scheme drawing that guide holder cooperates with bolster.

Figure 10 is the birds-eye view of Fig. 9.

Figure 11 is the structural representation of the another embodiment of trailer coupling.

1,2--draft arm, the 3--supporting pin, the 4--removable pin, the 5--hanger, the 6--hanger pin, the 7--key seat,

8--compartment base, the 9--crossbeam, the 10--spring, the 11--bolster, the 12--guide holder, the 13--air bag,

The 14--gasbag seat, 15--damping rubber cushion, 16--airbag aeration mouth, the 17--bump rubber, the 18--limiting stopper,

The 19--bumper.

Five, the specific embodiment

As shown in Figure 1 and Figure 2, the utility model design-calculated automobile secondary shock absorption device is arranged between automobile bodies base 8 and the crossbeam 9, it comprises trailer coupling and air bag damping.As Fig. 4, shown in Figure 5, described trailer coupling comprises draft arm 1,2, the upper end of draft arm 1 is 8 hinged by hanger 5, hanger pin 6 and compartment base, the lower end is movably hinged by the upper end of removable pin 4 with draft arm 2, and the lower end of draft arm 2 is hinged by supporting pin 3 and crossbeam 9.For ease of the movable crank throw of draft arm 1,2, draft arm 1 is designed to curved shape.Be connected with spring 10 between draft arm 1 and the crossbeam 9.

As shown in Figure 3, described air bag damping comprises bolster 11, guide holder 12, air bag 13, gasbag seat 14.As Fig. 9, shown in Figure 10, bolster 11 activities are arranged in the guide holder 12, and its upper end is connected with compartment base 8, the lower end is connected with air bag 13, and air bag 13 is fixedly arranged in the gasbag seat 14, and bolster 11 is provided with damping rubber cushion 15 with guide holder 12 cooperation places.As Fig. 6, Fig. 7, shown in Figure 8, gasbag seat 14 is fixedly arranged on the crossbeam 9 with guide holder 12.Air bag 13 is provided with charging connector 16, can inflate at any time.The air bag top and the bottom are provided with bolt, earlier air bag are locked on the bolster during installation, then with lower bolt and gasbag seat nut locking, and install safety catch additional.

The principle of work of automobile secondary shock absorption device is as follows: when the automobile deadhead operation, the gap of bolster and guide holder is 0＜L1＜L2, and the height H of compartment distance from bottom crossbeam is a maxim.When automobile during with the rated load cruising, the compartment advances with the chassis under the pulling of trailer coupling, the compartment also can fluctuate under the effect of air bag simultaneously, the shock wave of road surface and vehicle self mechanical drive transmission becomes via the decay of air bag a little less than, the passenger is felt comfortably cool.At this moment, pivot shaft is in the midway location of guide holder, i.e. gap L 1=L2.When automobile overload travelled, the compartment sank and produces displacement backward (0＜L2＜L1=, crossbeam might be run in the compartment in travelling, so be provided with bump rubber 17 on crossbeam.When the automobile emergency glancing impact, the inertia that the compartment can produce with respect to the chassis moves, this moment, trailer coupling was under the effect of force of inertia and spring tension, at the downward crank throw in node place, the compartment is moved forward, produce collision (L1=0) until pivot shaft and guide holder, because it is very little by (10～15mm) that gap L 1, L2 are provided with, and this collision is the soft collision with the rubber contact, thereby the inertia that makes the compartment moves the collision that seems steady and do not have fierceness, the rate of travel in compartment is very little, does not influence the operational stability of chaufeur.The compartment moves (L1=0) backward during reversing under the promotion of guide holder, and trailer coupling is in the crank throw state.When automobile turning, the compartment is subjected to the effect of centripetal force, occur bevelled may because the design's trailer coupling is a rigid constraint to the side travel in compartment, and damping only stays very little gap to the compartment side travel, can guarantee the lateral stability of automobile when turning effectively.When the automobile uphill/downhill, no matter the compartment moves forward or backward, and its amount of movement always under the constraint of guide holder, does not constitute the threat to traffic safety.For avoiding travelling middle carriage floating, be provided with height limiting stopper 18 in the bolster bottom above certain limit.Among the design, air bag has been installed in the automobile increase, and the center of gravity in compartment is increased, but the weight of automobile still major part concentrate on the chassis, therefore little to the height of gravitational center influence of car load generally, do not influence running car stability.

Also can adopt existing bumper to be connected between trailer coupling and the crossbeam 9 and without spring 10, as shown in figure 11, an end of bumper 19 is connected removable pin 4, the other end is connected on the crossbeam 9.When automobile normal running, crossbeam drives the compartment and advances together, and this moment, bumper 19 was in limit compression position, did not play cushioning effect, when the compartment jolts, and the bumper 19 stressed cushioning effects of having stretched, but the state of trailer coupling is constant.When the automobile emergency glancing impact, the compartment is because relative displacement takes place in inertia and chassis, and this moment is because the retardance of bumper 19, make the compartment steadily, reach lentamente, do not hit and fierce collision can not take place, guaranteed the stability of travelling.

When automobile is unloaded, the height H of compartment distance from bottom crossbeam, the load-carrying capacity of air bag, quantity and distribution will design according to the actual load of automobile.If the load of vehicle is bigger, can between compartment and crossbeam, increases oleo damper is installed.In case balloon rupture in travelling, the compartment can be shaken, and should change air bag this moment, if can not in time change, should adjust distribution of load, keeps automobile and continues to travel till can change.

Claims

1, automobile secondary shock absorption device, it is arranged between automobile bodies base and the crossbeam, it is characterized in that: comprise trailer coupling and air bag damping, described trailer coupling comprises draft arm (1), (2), the upper end and the compartment base of draft arm (1) is hinged, the upper end of lower end and draft arm (2) is movably hinged, and the lower end and the crossbeam of draft arm (2) are hinged; Described air bag damping comprises bolster, guide holder, air bag, gasbag seat, the bolster activity is arranged in the guide holder, its upper end is connected with the compartment base, the lower end is connected with air bag, air bag is fixedly arranged in the gasbag seat, bolster and guide holder cooperation place are provided with the damping rubber cushion, and gasbag seat and guide holder are fixedly arranged on the crossbeam.

2, automobile secondary shock absorption device according to claim 1, it is characterized in that: the upper end of draft arm (1) is hinged by hanger, hanger pin and compartment base, the lower end is movably hinged by the upper end of removable pin and draft arm (2), and the lower end of draft arm (2) is hinged by supporting pin and crossbeam.

3, automobile secondary shock absorption device according to claim 1 and 2 is characterized in that: be connected with spring between trailer coupling and the crossbeam.

4, automobile secondary shock absorption device according to claim 1 and 2 is characterized in that: be connected with bumper between trailer coupling and the crossbeam.

5, automobile secondary shock absorption device according to claim 1 and 2, it is characterized in that: crossbeam is provided with bump rubber.

6, automobile secondary shock absorption device according to claim 1, it is characterized in that: air bag is provided with charging connector.