CN2156095Y

CN2156095Y - Special bottom head for light passenger vehicle

Info

Publication number: CN2156095Y
Application number: CN 92215836
Authority: CN
Inventors: 崔靖; 张驰云; 龚勉; 廖伽尼
Original assignee: Shanghai University of Engineering Science
Current assignee: Shanghai University of Engineering Science
Priority date: 1992-07-08
Filing date: 1992-07-08
Publication date: 1994-02-16
Anticipated expiration: 2002-07-08

Abstract

The utility model relates to a special chassis for a light passenger vehicle, which is an all vibration-isolating vehicle frame type chassis, and the connection between the assembly of a chassis and the vehicle frame achieves vibration isolation effect. The utility model adopts a completely independent suspension frame with front and rear spiral springs to decrease the vibration of the chassis and enhance driving quality and riding comfort of a vehicle. The utility model has the advantages of reasonable and harmonious layout, convenient small batch production, long-distance transportation suitability, etc.

Description

Special bottom head for light passenger vehicle

The utility model discloses a kind of light bus chassis special, and particularly the front and back independent suspension has vehicle frame formula light bus chassis special, belongs to automobile manufacturing field.

Mostly at present domestic and international wagon chassis is to be reequiped by truck chassis.Because its fore suspension and rear suspension all adopts the dependent suspension of steel spring, thereby its ride comfort is poor, the vibration big, passenger's travelling comfort is bad; Simultaneously, because adopt the lorry repacking, so just as low load with strong power, not only heavy, general layout is inharmonious again, and the economy of motor vehicle fuel is bad; Self-supporting body is adopted on some wagon chassis more both at home and abroad in addition, does not generally have vehicle frame, is unfavorable for small batch production and remote transportation.

The purpose of this utility model is: it is little to propose a kind of vibration, and ride comfort is good, and the front and back independent suspension that tractive performance and fuel efficiency are all good has the light bus chassis special of vehicle frame formula.

Technical characterictic of the present utility model is: adopting has vehicle frame formula passenger-carrying chassis, and each assembly of chassis is connected whole vibration isolation with vehicle frame.The ingot beam is installed before vehicle frame for this reason, the front overhang spring is installed, constitute front axle by the ingot beam; Suspension bracket body crossbeam is set, by the fixing rear-end gear reduction of suspension bracket body at the vehicle frame rear; At chassis side rail arranged outside bearing support, in order to rear overhang spring and shock absorber to be installed; Back LL front end is installed on the trailing arm support of vehicle frame, and rear end and back axle are hinged; Left and right sides back axle and back axle are hinged.In addition, also adopt rear steering trapezoidal, pass a bridge in the middle of being added with, underneath type longitudinal tie in using connects deflector by the ingot beam.

The utlity model has following advantage:

1. owing to adopt full vibration isolation vehicle frame formula chassis, directly pass to vehicle frame and vehicle body thereby reduce the underframe vibration, make little, the ride comfort of body oscillating, rideability is improved, ride comfort.

2. the trapezoidal employing of rear steering coordinates the layout of car load, rationally.

3. be convenient to small batch production, transport at a distance on suitable chassis.

4. economic performance and tractive performance are better

Accompanying drawing 1 is an assembly scheme drawing of the present utility model.

Accompanying drawing 2 is the utility model front elevations.

Accompanying drawing 3 is rear suspension back views.

Accompanying drawing 4 is rear suspension partial schematic diagrams.

Accompanying drawing 5 is that steering system is arranged front elevation.

Accompanying drawing 6 is that steering system is arranged birds-eye view.

Wherein: 1. vehicle frame 2. ingot beams 3. rubber blocks 4. front overhang springs 5. longerons

6. suspension bracket body crossbeam 7. back axles 8. suspension bracket bodies 9. rubber blocks 10. rear overhang spring supporting frames

11. rear overhang spring 12. shock absorbers 13. left half axles 14. right axle shafts 15. trailing arm supports

16. the rear overhang trailing arm 17. rear overhang longitudinal axis 18. rubber blocks 19. spring pedestals 20. bearing circle

21. turn to swing arm 22. deflectors 23. steering side tubes 24. to turn to the transition swing arm

25. steering track rod rocking arm 26. left steering pull bars 27. track arms 28. tierods

29. right steering pull bar rocking arm 30. right steering pull bars 31. track arms 32. wheels

33. wheel 34. driving engines 35. fuel tanks 36. voltage transformers 37. transmission shafts

38. lateral damper 39. rubber blocks 40. steering trapeziums

Below in conjunction with accompanying drawing, the utility model is further elaborated.

At vehicle frame 1 front lower place lifting ingot beam 2, ingot beam 2 links to each other with vehicle frame 1 by rubber block 3, links to each other with wheel 32 by front overhang spring assembly 4.

With reference to Fig. 3, at vehicle frame 1 rear, connect suspension bracket body crossbeam 6 between the chassis side rail 5, back axle 7 is contained on the suspension bracket body crossbeam 6 by suspension bracket body 8.Between lifting body 8 and the back axle 7, between suspension bracket body 8 and the suspension bracket body crossbeam 6 rubber block 9 is arranged respectively.Longeron about 5 outsides install rear overhang spring supporting frame 10 respectively, are used for installing rear overhang spring 11 and shock absorber 12, back axle about 7 respectively hinged left half axles 13 and right axle shaft 14.

With reference to Fig. 4, longeron 5 installs trailing arm support 15, rear overhang LL 16 1 ends and trailing arm support 15 join, the other end then links to each other with rear overhang LL axle 17, and rear overhang spring 11 and shock absorber 12 support between rear overhang LL 16 and rear overhang spring supporting frame 10 by rubber block 18 and spring pedestal 19.Rear overhang LL 16 has rubber block 39 with trailing arm support junction.

With reference to Fig. 5 and Fig. 6.Be installed in the steering system before the vehicle frame 1, (comprising rear steering trapezoidal 40), link to each other with deflector 22 by universal-joint by bearing circle 20.Deflector 22 is connected with turning to swing arm 21.Steering side tube 23 1 ends are connected with turning to swing arm 21, the other end is connected with turning to transition swing arm 24 by ingot beam 2, transition swing arm 24 connects left steering pull bar rocking arm 25, and left steering pull bar rocking arm 25 middle-ends are connected with steering track rod 26, and steering track rod 26 is connected with track arm 27; Left steering pull bar rocking arm 25 outer ends are connected with tierod 28.Tierod 28 other ends are connected with right steering pull bar rocking arm 29 outer ends, and right steering pull bar rocking arm 29 middle-ends are connected with steering track rod 30.Steering track rod 30 outer ends are connected with track arm 31, and track

arm

27,31 is installed in respectively on left and right wheels 33 back-plates.

In addition, driving engine 34 is installed also on vehicle frame 1, fuel tank 35, voltage transformer 36 and transmission shaft 37 are equipped with lateral damper 38 between back axle 7 and suspension bracket body crossbeam 6.

Claims

1, a kind of light bus chassis special comprises vehicle frame 1 at least, front and back wheel 32,33, and driving engine 34, fuel tank 35, voltage transformer 36 and transmission shaft 37 is characterized in that:

A. in the front lower place of vehicle frame 1 ingot beam 2 is installed, is linked to each other with wheel 32 by front overhang spring assembly 4;

B., suspension bracket body crossbeam 6 is set at the rear of vehicle frame 1, is connected between the longeron 5, and installs back axle 7 by the suspension bracket body 8 on the suspension bracket body crossbeam 6, back axle 7 both sides are hinged left half axle 13 and right axle shaft 14 respectively;

C. the employing rear steering that in the front upper place of vehicle frame 1 bearing circle 20 is housed and is attached thereto is trapezoidal 40, pass a bridge in the middle of being added with, with on put steering side tube 23 and turn to by the 2 connection deflectors 22 of ingot beam;

D. by the trailing arm support 15 and the rear overhang trailing arm axle 17 that are arranged on the longeron 5 rear overhang trailing arm 16 is installed.

E. at longeron 5 nearly suspension bracket body crossbeams 6 places, rear overhang spring supporting frame 10 is installed, rear overhang spring 11 and shock absorber 12 are installed between rear overhang spring supporting frame 10 and rear overhang trailing arm 6.

2, bus chassis as claimed in claim 1 is characterized in that ingot beam 2 and vehicle frame 1 connecting place are embedded with rubber block 3.

3,, it is characterized in that there is rubber block 9 suspension bracket body 8 and suspension bracket body crossbeam 6 junctions as the described bus chassis of claim 1.

4,, it is characterized in that there is spring pedestal 19 rear overhang trailing arm 16 and rear overhang spring junction as claim 1 or 3 described bus chassiss.

5,, it is characterized in that there is rubber block 39 rear overhang trailing arm support 10 and rear overhang trailing arm 16 junctions as claim 1 or 3 described bus chassiss.

6, bus chassis as claimed in claim 1 or 2, it is characterized in that steering trapezium 40 is to be linked to each other with deflector 22 by universal-joint by bearing circle 20, deflector 22 is connected with turning to swing arm 21, steering side tube 23 1 ends are connected with turning to swing arm 21, the other end is connected with turning to transition swing arm 24, by turning to transition swing arm 24 to be connected with left-hand rotation pull bar swing arm 25, steering track rod rocking arm 25 middle-ends are connected with left steering pull bar 26, the outer end of left steering pull bar rocking arm 25 connects tierod 28, the other end of tierod 28 is connected with right steering pull bar rocking arm 29 outer ends, right steering pull bar rocking arm 29 middle-ends are connected with right steering pull bar 30, right steering pull bar 30 outer ends are connected with track arm 31, track arm 27,30 is installed in respectively on left and right wheels 33 back-plates and constitutes.