CN201120836Y

CN201120836Y - Motor tricycle and rear axle suspension system of mini-carriage

Info

Publication number: CN201120836Y
Application number: CNU200720188151XU
Authority: CN
Inventors: 赵全
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-02
Filing date: 2007-11-02
Publication date: 2008-09-24
Anticipated expiration: 2017-11-02

Abstract

The utility model relates to a suspension system for tricycles and the back axles of miniature passenger cars, the tail ends of both guiding arms are connected through a transversal anti-rolling bar, and the front ends of the guiding arms are connected with the longitudinal beam of the car frame at the same side; two air springs are arranged laterally and symmetrically behind a back axle shaft pipe, the two air springs are communicated through a middle air pipe, and a height controlling valve is installed in front of one of air springs, the adjusting arm of the height controlling valve is hinged with the upper head of a connecting rod, the lower head of the connecting rod is hinged with supporting frames, and the supporting frames are fixed on the guiding arms; an air inlet and an air outlet of the height controlling valve are respectively connected with the two interfaces of a T-junctor through two air pipes, the third interface of the T-junctor is communicated with the middle air pipe through an air pipe, an air inlet pipe is connected on the middle air pipe, and an air valve is installed at the air inlet of the air inlet pipe. The impact load between the back axle and the car frame is reduced and eliminated by the suspension system, not only the smoothness of the tricycles or the miniature passenger cars during the traveling process is improved, but also the safety and the comfort of the driving and the riding are improved effectively.

Description

Axle suspension behind motor-tricycle and the microvan

Technical field

The utility model relates to the member of a kind of motor-tricycle or microvan, relates in particular to axle suspension behind motor-tricycle and the microvan.

Background technology

At present, the back axle suspension of motor-tricycle or microvan generally adopts steel spring or coil spring and bumper to connect vehicle frame and back axle central siphon, to reduce and to eliminate the impact load of back axle and vehicle frame, axle suspension has the following disadvantages behind this general-duty:

1, the frequency of natural vibration of steel spring or spiral spring suspension is higher, thereby motor-tricycle or the microvan ride comfort when travelling is relatively poor, cause the parts early failure because of resonance easily, especially easily cause the electric appliance component infantile failure, make that the reliability of chassis and circuit, air-channel system is relatively poor.

2, be subjected to the influence of the rough and uneven in surface impact of road, wheel impacts load is bigger, and to the vehicle body vibrations that impact, safety of driving and taking and traveling comfort are all relatively poor easily; Simultaneously, the impact of wheel road pavement is also bigger, has shortened the service life of road.

3, the anti-roll capability deficiency of vehicle, driving safety are difficult to guarantee.

4, load is unbalanced, and the service life of tire is short, and vehicle is started to walk difficult on low adhesive ability coefficient road surface.

5, the fatigue durability of steel spring or spiral spring suspension is relatively poor, and service life is shorter, installs, changes complexity simultaneously, the maintaining difficulty, and increased the deadweight of vehicle.

6, the car load operation has noise to produce, and does not meet higher environmental demands.

The utility model content

Technical problem to be solved in the utility model is to provide axle suspension behind a kind of motor-tricycle and the microvan, to effectively reduce and to eliminate the impact load between back axle and vehicle frame.

The technical solution of the utility model is as follows: axle suspension behind a kind of motor-tricycle and the microvan, comprise back axle central siphon, bumper and two chassis side raiies that are arranged side by side, and its key is:

A, below described two chassis side raiies, be symmetrical arranged a pair of guide arm, the front end of this guide arm is connected with the chassis side rail of homonymy, bridge bracket forms by bolt and flexibly connects behind the postmedian of guide arm and the homonymy, and back bridge bracket is welded on the bottom surface of back axle central siphon, and the tail end of two guide arms links to each other by Panhard rod;

Between the rear end of B, described two guide arms and the chassis side rail of homonymy air bellow is housed all, two air bellows are communicated with by middle gas tube, and setting height(from bottom) control cock on the chassis side rail in one of them air bellow the place ahead, the regulating arm of this height-control valve is hinged by the higher authorities of Rubber Parts and connecting rod, following of connecting rod is hinged by Rubber Parts and support, and support is fixed on the guide arm;

The inlet and outlet mouth of C, described height-control valve is connected with two interfaces of T-pipe joint respectively by two tracheaes, the 3rd interface of this T-pipe joint communicates with intermediate pipe by tracheae, also be connected to air inlet pipe on described intermediate pipe, tire tube valve is equipped with in the inflow point of this air inlet pipe;

The upper end and the chassis side rail of D, described bumper are hinged, and the lower end of bumper is articulated in the middle part of guide arm.

The utility model becomes by the air bellow of air as elastic medium in order to the steel spring or the coil spring that reduce and eliminate impact load traditional, can inflate to two air bellows by the Floor Pump manual type by tire tube valve, also can put on the air and atmospheric pressure compensating to two air bellows by vehicle self power.Motor-tricycle or microvan are in scraggly travels down, when the air bellow of this side of height-control valve was compressed by moment, pressure in this air bellow rises, connecting rod is the regulating arm of the height-control valve jack-up that makes progress, the Exhaust Open of height-control valve at this moment, inlet close, the outside exhaust of the air bellow of this side of height-control valve, the air of discharging enters into the air bellow of opposite side by intermediate pipe, and its pressure is replenished, and makes vehicle frame moment keep balance; When the air bellow of this side of height-control valve was stretched by moment, pressure decay in this air bellow, connecting rod pulls down the regulating arm of dynamic height control cock, at this moment the exhaust close of height-control valve, air inlet open, the air bellow of this side of height-control valve is inwardly air-breathing, make air in the opposite side air bellow enter into the air bellow of this side of height-control valve by intermediate pipe, its pressure is replenished, also can make vehicle frame moment maintenance balance, thereby effectively reduced and eliminated the impact load between back axle and vehicle frame, prevented that vehicle body from producing significantly vibrations because of being hit, ride comfort when not only having improved motor-tricycle or microvan and travelling, and effectively improved safety and the traveling comfort driving and take.

For simplified structure, to be convenient to install, above-mentioned Panhard rod is the straight pipe structure, is embedded screw collar at the two ends of Panhard rod, this screw collar and Panhard rod welding are fixing, and screw collar connects with the rear end of corresponding guide arm by bolt.

Above above-mentioned back axle central siphon lateral rod is set, the upper end of this lateral rod is connected with support on the chassis side rail, and the lower end of lateral rod is connected with bearing by bolt, and bearing is welded in the middle part of back axle central siphon.Lateral rod and Panhard rod can make the vehicle in travelling have good anti-roll capability in conjunction with the roll rate that has increased suspension, and the driving safety of vehicle is guaranteed.

In order to reduce assembly difficulty, the convenient installation, be embedded screw collar in the upper end of above-mentioned lateral rod, this screw collar and lateral rod welding are fixing, and screw collar is connected with described support by bolt.

The lower supporting plate of above-mentioned air bellow bottom is connected with cooresponding guide arm by bolt, the top of air bellow is fixed by bolt and upper bracket, this upper bracket is welded on the chassis side rail, be connected reliably like this between air bellow and guide arm and the chassis side rail, in-use performance and service life are all secure.

The beneficial effects of the utility model are:

1, air bellow has the change stiffness characteristics, has only lower frequency of natural vibration, thereby the ride comfort can improve motor-tricycle or microvan and travel the time, the parts early failure that minimizing causes because of resonance, especially the infantile failure of electric appliance component improves the reliability of chassis and circuit, air-channel system; System makes the vehicle in travelling have good anti-roll capability under the combined action of Panhard rod and lateral rod, and the driving safety of vehicle is guaranteed.

2, the vertical load of full air suspension all by the air bellow carrying, has reduced the impact that causes because of Uneven road, has improved safety and the traveling comfort driving and take; Under the same load effect, air suspension can obtain the oscillation frequency more much lower than steel spring suspension, and wheel impacts load is little like this, and the shock insulation by air bellow can also effectively reduce because of the rough and uneven in surface impact endurance test shock that vehicle body is caused of road.

3, symmetrical load has prolonged service life of tire; And can overcome the situation of vehicle starting difficulty on low adhesive ability coefficient road surface, reduce the impact of wheel road pavement simultaneously, the service life of having improved road.

4, the fatigue durability of rubber air spring is better than the metal spring manyfold, and service life is longer, installs simultaneously, changes conveniently, and maintaining is simple, and can reduce dead weight of vehicle.

5, can reduce the car load noise, reach higher environmental demands.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the birds-eye view of Fig. 1.

Fig. 3 is a structural representation of removing height-control valve and associated pipe among Fig. 1.

Fig. 4 is the birds-eye view of Fig. 3.

Fig. 5 is the right elevation of Fig. 3.

Fig. 6 is the A portion enlarged drawing of Fig. 5.

Fig. 7 is the B portion enlarged drawing of Fig. 5.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 7, left and right two chassis side raiies 3 are arranged side by side, and back axle central siphon 1 is positioned at the below at chassis side rail 3 rear portions and spatially vertical with chassis side rail 3.A guide arm 4, two guide arms 4 respectively are set below two chassis side raiies 3 are left and right symmetrical distribution, the make progress curved distortion of the front portion of guide arm 4 is extended, and the end is connected with support 23 by bolt, and support 23 is welded on the chassis side rail 3 of respective side; The postmedian of guide arm 4 flexibly connects by bolt and back bridge bracket 24, and this back bridge bracket 24 is welded on the bottom surface of back axle central siphon 1; The tail end of described two guide arms 4 links to each other by Panhard rod 5, that is: Panhard rod 5 is a straight tube structure, spatially vertical with guide arm 4, be embedded the screw collar 17 of coaxial line with it at the left and right two ends of Panhard rod 5, this screw collar 17 is fixing with Panhard rod 5 welding, and screw collar 17 connects with the rear end of corresponding guide arm 4 by bolt.

As Fig. 5, shown in Figure 6, mode low with the inner above back axle central siphon 1, that the outer end is high is obliquely installed lateral rod 18, be embedded screw collar 20 in the upper end of lateral rod 18, this screw collar 20 is fixing with lateral rod 18 welding, and screw collar 20 is connected with support 25 by bolt, and support 25 is welded on the medial surface of dextral carriage longeron 3.The lower end of described lateral rod 18 is connected with bearing 19 by bolt, and bearing 19 is welded in the middle part of back axle central siphon 1.Lateral rod 18 combines with Panhard rod 5, can make motor-tricycle or microvan in travelling have good anti-roll capability, and the driving safety of vehicle is guaranteed.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, two air bellows 6 are left and right symmetric arrangement at the rear of back axle central siphon 1, the lower supporting plate 21 of each air bellow 6 bottom is connected by the rear end of bolt with homonymy guide arm 4, the top of air bellow 6 is fixing by bolt and upper bracket 22, and this upper bracket 22 is welded on the chassis side rail 3 of respective side.On the chassis side rail 3 in left side air bellow 6 the place aheads, pass through support 26 setting height(from bottom) control cock 8, the regulating arm of this height-control valve 8 stretches out forward, and hinged by the higher authorities of Rubber Parts and connecting rod 9, following of connecting rod 9 is hinged by Rubber Parts and support 10, and support 10 is fixed on the guide arm 4.

From Fig. 1, Fig. 2, Fig. 3 and Fig. 4 also as can be known, respectively be provided with a bumper 2 in the outside of two chassis side raiies 3, the upper end of this bumper 2 turns forward, and the end of upper end is hinged by bolt and cooresponding chassis side rail 3, and the lower end of bumper 2 is articulated in the middle part of respective side guide arm 4.

As Fig. 1, shown in Figure 2, gas circuit in the utility model is to be provided with like this: the tail end at dextral carriage longeron 3 is installed into tracheae 15, tire tube valve 16 is equipped with in the inflow point of this air inlet pipe 15, an interface of the outlet of air inlet pipe 15 and T-pipe joint 27 joins, second interface of T-pipe joint 27 communicates with the air bellow 6 on right side by tracheae and inlet suction port, the 3rd interface of T-pipe joint 27 is connected with an end of middle gas tube 7, the other end of middle gas tube 7 and second T-pipe joint 28 one of them interface join, second interface of this T-pipe joint 28 communicates with the air bellow 6 in left side by tracheae and inlet suction port, the 3rd interface of T-pipe joint 28 joins by tracheae 14 and the 3rd T-pipe joint 13 one of them interface, and two interfaces in addition of the 3rd T-pipe joint 13 are by two

tracheaes

11,12 respectively with the advancing of described height-control valve 8, exhausr port connects.

The utility model is like this work: the motor-tricycle of air suspension or microvan are housed in scraggly travels down, when the air bellow 6 of height-control valve 8 these sides (among Fig. 2 left side) was compressed by moment, pressure in this air bellow 6 rises, connecting rod 9 is with the regulating arm of height-control valve 8 jack-up that makes progress, at this moment the Exhaust Open of height-control valve 8, inlet close, the air bellow 6 outside exhausts of height-control valve 8 these sides, the air of discharging enters into the air bellow 6 on opposite side (Fig. 2 right side) by intermediate pipe 7, its pressure is replenished, make vehicle frame moment maintenance balance; When the air bellow 6 of height-control valve 8 these sides was stretched by moment, pressure decay in this air bellow 6, connecting rod 9 pulls down the regulating arm of dynamic height control cock 8, at this moment the exhaust close of height-control valve 8, air inlet open, the air bellow 6 of height-control valve 8 these sides is inwardly air-breathing, make air in the opposite side air bellow 6 enter into the air bellow 6 of height-control valve 8 these sides by intermediate pipe 7, its pressure is replenished, also can make vehicle frame moment maintenance balance, thereby effectively reduced and eliminated the impact load between back axle and vehicle frame, prevented that vehicle body from producing significantly vibrations because of being hit, ride comfort when not only having improved motor-tricycle or microvan and travelling, and effectively improved safety and the traveling comfort driving and take.

In the utility model, also height-control valve 8 and connecting rod 9 can be arranged in right side shown in Figure 2, and air inlet pipe 15 and tire tube valve 16 are arranged in left side shown in Figure 2, such conversion still falls within the protection domain of the present utility model.

Claims

1, axle suspension behind a kind of motor-tricycle and the microvan comprises back axle central siphon (1), bumper (2) and two chassis side raiies that are arranged side by side (3), it is characterized in that:

A, be symmetrical arranged a pair of guide arm (4) in the below of described two chassis side raiies (3), the front end of this guide arm (4) is connected with the chassis side rail (3) of homonymy, bridge bracket (24) forms by bolt and flexibly connects behind the postmedian of guide arm (4) and the homonymy, and back bridge bracket (24) is welded on the bottom surface of back axle central siphon (1), and the tail end of two guide arms (4) links to each other by Panhard rod (5);

Between the chassis side rail (3) of the rear end of B, described two guide arms (4) and homonymy air bellow (6) is housed all, two air bellows (6) are communicated with by middle gas tube (7), and the chassis side rail (3) in one of them air bellow (6) the place ahead is gone up setting height(from bottom) control cock (8), the regulating arm of this height-control valve (8) is hinged by the higher authorities of Rubber Parts and connecting rod (9), following of connecting rod (9) is hinged by Rubber Parts and support (10), and support (10) is fixed on the guide arm (4);

The inlet and outlet mouth of C, described height-control valve (8) is connected with two interfaces of T-pipe joint (13) respectively by two tracheaes (11,12), the 3rd interface of this T-pipe joint (13) communicates with intermediate pipe (7) by tracheae (14), also be connected to air inlet pipe (15) on described middle gas tube (7), tire tube valve (16) is equipped with in the inflow point of this air inlet pipe (15);

The upper end of D, described bumper (2) and chassis side rail (3) are hinged, and the lower end of bumper (2) is articulated in the middle part of guide arm (4).

2, axle suspension behind motor-tricycle according to claim 1 and the microvan, it is characterized in that: described Panhard rod (5) is the straight pipe structure, be embedded screw collar (17) at the two ends of Panhard rod (5), this screw collar (17) is fixing with Panhard rod (5) welding, and screw collar (17) connects with the rear end of corresponding guide arm (4) by bolt.

3, axle suspension behind motor-tricycle according to claim 1 and the microvan, it is characterized in that: lateral rod (18) is set in the top of described back axle central siphon (1), the upper end of this lateral rod (18) is connected with support (25) on the chassis side rail (3), the lower end of lateral rod (18) is connected with bearing (19) by bolt, and bearing (19) is welded in the middle part of back axle central siphon (1).

4, axle suspension behind motor-tricycle according to claim 3 and the microvan, it is characterized in that: be embedded screw collar (20) in the upper end of described lateral rod (18), this screw collar (20) is fixing with lateral rod (18) welding, and screw collar (20) is connected with described support (25) by bolt.

5, axle suspension behind motor-tricycle according to claim 1 and the microvan, it is characterized in that: the lower supporting plate (21) of described air bellow (6) bottom is connected with cooresponding guide arm (4) by bolt, the top of air bellow (6) is fixing by bolt and upper bracket (22), and this upper bracket (22) is welded on the chassis side rail (3).