CN100361832C - Double-arm suspension frame of vehicle - Google Patents

Abstract

The present invention relates to a double arm type suspension for an automobile, which belongs to a suspension assembly of the running system of an automobile. A main suspension is sheathed with a front upper arm frame with a front lower arm frame, a back upper arm frame with a back lower arm frame, and a connecting main plate. A main pressing spring is arranged between the front upper arm frame and the back upper arm frame. A front upright post and a back upright post are hinged with the connecting main plate and are matched with a front upright post pressing spring, a back upright post pressing spring, a front spring seat and a back spring seat. The front upper arm frame and the back upper arm frame are contained in a groove of a double arm spacing clip by the double arm spacing clip fixed on the connecting main plate. A front hydraulic damper and a back hydraulic damper are hinged with the front upper arm frame and the back upper arm frame. A connecting frame is hinged with the front upper arm frame, the front lower arm frame, the back upper arm frame and the back lower arm frame by a spline pin and a straight pin. The suspension has a strong ability for adapting to the road, good cross-country performance and good bogging prevention performance, and can run stably.

Description

The automobile double arm type suspension

Technical field

The invention belongs to running gear suspension assembly on the automobile, mainly is suitable for the supporting uses of Light-duty Vehicle such as cross-country car, small passenger car, medical truck, caravan.

Background technology

At present, various Light-duty Vehicle, drive axle assembly of the equal connection in each hanger bracket bottom or a follow-up bridge assembly such as running gears such as cross-country car, small passenger car, medical truck, caravans, each an equipped drive wheel assembly or flower wheel assembly at the two ends of its drive axle assembly or follow-up bridge assembly, the running gear of this class formation is at pavement quality preferably under the condition, have operate steadily, the characteristics of tire and adhesion to road surface better performances, driveability and carrying capacity also can satisfy operating needs.But, when relatively poor, rough and uneven in surface at pavement quality or when on sandy soil road, muddy earth road pavement, moving, its running stability is poor, the top ripple is serious, anti-performance, running velocity and the driving carrying capacity of falling into reduces significantly, the applicable area of vehicle operating road pavement narrows down, and the ability that adapts to various road conditions is relatively poor.

Summary of the invention

The purpose of the invention is exactly technical matters and the defective that exists at above-mentioned prior art, design provides a kind of automobile double arm type suspension, increase substantially the purpose of all kinds of lilliput cars by under a hanger bracket, being equipped with the drive axle or the follow-up bridge assembly structures of two motions that are hinged simultaneously, reaching to comformability and carrying capacity, raising vehicle smoothness and the traveling comfort of all kinds road.

The basic design of the invention is, on the cylinder axis of main suspension one end before the overlapping suit, on the back jib be connected mainboard, preceding, before the bottom of jib installs respectively on the back, the back is jib down, being fitted in of main stage clip compressed fit is preceding and back upward between the jib, before, the lower end of rear column is hinged respectively and is connecting on the mainboard, before, the rear column stage clip is installed in respectively between front spring seat and A-pillar and rear spring seat and the rear column, before the spacing fixing of both arms is contained in and connects mainboard, on the rear, before inciting somebody to action, jib is included in the spacing draw-in groove of both arms on the back, before, before one end of back liquid damper is hinged on respectively, on the back on the jib, preceding, on the back jib before, plug-in mounting spline pin in the back main aperture, the straight pin inserting is preceding, before the back jib down, in the secondary hole, back, spline pin and straight pin will have front driving axle or preceding follow-up bridge assembly is hinged on the preceding jib of going up respectively with the link span that has rear driving axle or back follow-up bridge assembly, jib is gone up in preceding jib down and back, on the jib, so far constitute the automobile double arm type suspension under the back.

It is strong that the invention adapts to the road ability, operates steadily, and deceleration and stopping performance is good, and braking distance is short, good reliability, cross-country anti-fall into ability and carrying capacity strong, especially on rough and uneven in surface road surface or mire, soft surface, use its performance advantage more outstanding; When meeting indivedual damaged tyres by chance, can continue operation, improve vehicle operating efficient and safety.

Description of drawings

Fig. 1 is an automobile double arm type suspension overall structure front view;

Fig. 2 is bowing to view of Fig. 1;

Fig. 3 is spline pin, straight pin, link span and front driving axle or preceding follow-up bridge assembly (rear driving axle or back follow-up bridge assembly) mounting structure scheme drawing;

Fig. 4 is that preceding (back) goes up jib, preceding (back) jib mounting structure scheme drawing down;

Fig. 5 is an A-A cutaway view among Fig. 1, and promptly both arms position-limit card junction structure reaches with preceding (back) and goes up jib, is connected mainboard configuration structure scheme drawing.

Piece number explanation among the figure:

1, preceding liquid damper, 2, preceding main aperture, 3, the preceding jib of going up, 4, the front spring seat, 5, the A-pillar stage clip, 6, A-pillar, 7, main stage clip, 8, rear column, 9, the rear column stage clip, 10, rear spring seat, 11, main suspension, 12, jib on the back, 13, back main aperture, 14, back liquid damper, 15, rear driving axle or back follow-up bridge assembly, 16, secondary hole, back, 17, the back is jib down, 18, the spacing card of both arms, 19, connect mainboard, 20, preceding jib down, 21, preceding secondary hole, 22, front driving axle or preceding follow-up bridge assembly, 23, preceding wheel assembly, 24, rear wheel assembly, 25, the spline pin, 26, link span, 27, straight pin, 28, the elastic buffer piece.

The specific embodiment

Below in conjunction with accompanying drawing the invention optimum implementation is described in detail.The automobile double arm type suspension comprises front and rear wheel assembly 23,24, forward and backward drive axle or follow-up bridge assembly 22,15 and forward and backward liquid damper 1,14, on on the cylinder axis of curved main suspension 11 1 ends of integral body, overlapping before the suit successively on jib 3, the back jib 12 be connected mainboard 19, and front and back symmetry; Jib 17 under jib 20 and the back under before symmetry installs respectively on the bottom of jib 3,12 on forward and backward; Go up jib 3 and back before main stage clip 7 is fitted in and go up between the jib 12, its both ends of the surface contact compressed fit with the forward and backward jib 3,12 of going up respectively; The lower end of A-pillar 6 and rear column 8 symmetry hinge respectively is being connected on the mainboard 19, and A-pillar stage clip 5 and rear column stage clip 9 are installed in respectively between front spring seat 4 and A-pillar 6 and rear spring seat 10 and the rear column 8, contact matching; Spacing card 18 symmetries of both arms that cross-sectional plane is the ∏ type are packed in connection mainboard 19 forward and backward positions, and the forward and backward jib 3,12 of going up is included in the H type groove of the spacing card 18 of both arms; One end of forward and backward liquid damper 1,14 is hinged on forward and backward going up on the jib 3,12 respectively; Difference plug-in mounting spline pin 25 in the preceding main aperture 2 of jib 3,12, the back main aperture 13 on forward and backward, inserting straight pin 27 respectively in the preceding secondary hole 21 of forward and backward down jib 20,17, secondary hole 16, back utilizes spline pin 25 and straight pin 27 will have front driving axle or preceding follow-up bridge assembly 22 and has rear driving axle or the link span 26 of back follow-up bridge assembly 15 is gone up jib 3, preceding jib 20 down and back before being hinged on respectively and gone up under jib 12, the back on the jib 17.At the inboard equipped elastic buffer piece 28 of spacing card 18 top and bottom sidewalls of the both arms of ∏ type.

During use, the other end of main suspension 11 and forward and backward liquid damper 1,14 is hinged on the automobile chassis frame, forward and backward spring perch 4,10 is fixed on the vehicle frame, and front and rear wheel assembly 23,24 is packed in respectively on forward and backward drive axle or forward and backward follow-up bridge assembly 22,15 left and right sides ends.Main stage clip 7 controls are forward and backward, and upward jib 3,12 is downward around the cylinder axis of main suspension 11 all the time, makes front and rear wheel assembly 23,24 and ground closed contact; When the road surface is rough and uneven in surface, preceding upward jib 3 or back are gone up jib 12 and are put on main suspension 11 cylinder axis, contacting to both arms behind the spacing card 18, ordering about connection mainboard 19 swings around main suspension 11 cylinder axis, simultaneously through A-pillar 6 or rear column 8 compression A-pillar stage clip 5 or rear column stage clips 9, swing up and down synchronously with rear wheel assembly 23,24 before making, guarantee that two-wheeled contacts the road surface all the time, improve running stability and guarantee driveability.

Claims (2)

1. automobile double arm type suspension, comprise front and rear wheel assembly (23,24), forward and backward drive axle or follow-up bridge assembly (22,15) and forward and backward liquid damper (1,14), it is characterized in that on the cylinder axis of curved main suspension (11) one ends of integral body, overlapping successively and go up on jib (3), the back jib (12) before the suit and be connected mainboard (19), and the front and back symmetry; Jib (17) under jib (20) and the back under before symmetry installs respectively on the bottom of jib on forward and backward (3,12); Go up jib (3) and back before main stage clip (7) is fitted in and go up between the jib (12), main stage clip (7) both ends of the surface contact compressed fit with the forward and backward jib (3,12) of going up respectively; The lower end of A-pillar (6) and rear column (8) symmetry hinge respectively is being connected on the mainboard (19), A-pillar stage clip (5) and rear column stage clip (9) are installed in respectively between front spring seat (4) and A-pillar (6) and rear spring seat (10) and the rear column (8), contact matching; The spacing card of both arms (18) symmetry that cross-sectional plane is the ∏ type is packed in the forward and backward position of connection mainboard (19), and the forward and backward jib (3,12) of going up is included in the ∏ type groove of the spacing card of both arms (18); One end of forward and backward liquid damper (1,14) is hinged on forward and backward going up on the jib (3,12) respectively; Difference plug-in mounting spline pin (25) in the preceding main aperture (2) of jib on forward and backward (3,12), the back main aperture (13), inserting straight pin (27) respectively in the preceding secondary hole (21) of forward and backward down jib (20,17), secondary hole, back (16), utilize spline pin (25) and straight pin (27) will have front driving axle or preceding follow-up bridge assembly (22) and have rear driving axle or the link span (26) of back follow-up bridge assembly (15) go up before being hinged on respectively jib (3), preceding jib (20) down and after upward jib (12), after under on the jib (17).

2. automobile double arm type suspension according to claim 1 is characterized in that at the inboard equipped elastic buffer piece (28) of the spacing card of the both arms of ∏ type (18) top and bottom sidewall.

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