CN2652764Y

CN2652764Y - Heavy automobile chassis

Info

Publication number: CN2652764Y
Application number: CN 200320121618
Authority: CN
Inventors: 李左龙; 杨颖超; 喻祖光; 刘全荣; 熊新春; 刘堃; 王萍; 王立波
Original assignee: SPECIAL VEHICLE TECHNOLOGY CENTER OF CHINA SANJIANG SPACE ESTATE GROUP; CHINA SANJIANG SPACE ESTATE INDUSTRY GROUP Co
Current assignee: SPECIAL VEHICLE TECHNOLOGY CENTER OF CHINA SANJIANG SPACE ESTATE GROUP; CHINA SANJIANG SPACE ESTATE INDUSTRY GROUP Co
Priority date: 2003-11-18
Filing date: 2003-11-18
Publication date: 2004-11-03
Anticipated expiration: 2013-11-18

Abstract

The utility model discloses a heavy vehicle chassis, comprising a cab (1), an engine (2), a driving gear (3), a frame (4), wheels, a steering gear (5) and a braking gear, which is characterized in that the steering gear (5) is designed with a front double-bridge steering structure; a front double-bridge through type driving bridge is adopted for driving, the back bridge is an integral driving bridge; a turn-around subpanel (19) is installed on the frame (1) for the upper cover. In the utility model, the problem of bad flexibility of the entire vehicle, bad performance on traveling in fields, bad adaptability of the chassis and the upper cover because of the defects existed in the driving, steering and traveling gears of the existing heavy vehicle chassis is solved. The contradiction between the whole-wheel driving and the front double-bridge steering is solved; the front double-bridge steering is achieved in the utility model, so that the flexibility and capacity of traveling in fields of the entire vehicle are greatly improved. The utility model which also has the advantages of convenience and easiness in operation and maintenance can be widely applied to various heavy vehicles with high requirements to flexibility and capacity of traveling in fields.

Description

A kind of heavy motor vehicle chassis

Technical field

The utility model relates to a kind of heavy motor vehicle chassis, relates in particular to a kind of all-wheel powered high maneuverability, high cross-country traveling ability heavy motor vehicle chassis.

Technical background

Stable development along with national economy, the adjustment of the industrial structure and the enforcement of strategy to develop western regions, town and country construction, defence equipment and transportation etc. develop rapidly, to the special-use vehicle of high maneuverability, high cross-country traveling ability particularly the demand of heavy special-use vehicle will increase considerably.But at present in China the exploitation on the heavy goods vehicles chassis that manoevreability is good, cross-country traveling ability is high, load carrying ability is big being in blank substantially, mainly is because the restriction of the driving device of heavy goods vehicles, steering hardware, running gear etc.The six-wheeler chassis of at present existing 6 * 6 all-wheel drive forms, its drive form has only part-time case to connect a kind of drive form of drive-type to propons and part-time case to middle back duplex, and the through driving of so-called duplex is meant after power transmission to the first vehicle bridge by this root vehicle bridge and continues transmission of power to a kind of vehicle bridge combination of another root vehicle bridge and the form that turns to of the heavy goods vehicles of above-mentioned drive form has only the form that turns to that propons list bridge turns to by diff and transmission shaft.Forward and needs of barycenter turn round the special-use vehicle of operation in the time of can not adapting to operation in the general layout of this kind heavy goods vehicles, need the jackshaft reach as the job requirements that will satisfy this kind vehicle, the vehicle of this kind arrangement form causes wear on tyres serious because of tyre skidding when turning to.The chassis of heavy goods vehicles use generally needs increase auxiliary girder on vehicle frame when repacking in addition, and this is furnished with considerable restraint to car load.Owing to there are the problems referred to above, domestic heavy engineering machinery special vehicle, oil field special vehicle, job that requires special skills car can not well be developed, and its reason is that domestic nothing adapts to the heavy motor vehicle chassis with big load-carrying capacity, high maneuverability, high off-road capability that special vehicle uses.

Summary of the invention

The purpose of this utility model is exactly the problem that exists for the driving device that solves existing car chassis existence, steering hardware, running gear, by improvement, a kind of big carrying quality is provided, can adapts to the high maneuverability of various complex road conditions, the car chassis of high cross-country traveling ability driving device, steering hardware, running gear.

For achieving the above object, the utility model has adopted following technical scheme: a kind of car chassis, it has driving engine, driving device, running gear, steering hardware, brake equipment, operator's compartment.It is characterized in that: doube bridge steering structure before steering hardware adopts; Doube bridge through-drive axle before the all-wheel drive structure adopts, back axle is a rigid drive axle; Be equipped with on the vehicle frame of running gear and keep supplying the revolution subpanel that dress uses.

Described driving engine is between operator's compartment rear subframe left-right longeron.

The change-speed box of described driving device, part-time case are installed on the vehicle frame, change-speed box directly docks with driving engine, part-time case connects by transmission shaft I with change-speed box, the end of transmission shaft II and transmission shaft III connects with the forward and backward mouth of part-time case respectively, the other end respectively with in, the back axle input end connects, the input end of propons connects with the jackshaft mouth by transmission shaft IV.

Described transmission shaft is a tubulose open type Hooke's joint transmission shaft.

Described all-wheel drive structure is the through steering drive axle of preceding duplex, back rigid drive axle.

Described vehicle frame is integrally closed framed structure vehicle frame, has forward and backward fixed supporting leg on the vehicle frame and keeps supplying the revolution subpanel that dress uses.

Described brake equipment comprises service brake device, holding brake device, emergency braking apparatus and complemental brake system, and the service brake device adopts pneumatic type dual line braking device; Holding brake device adopts the venting spring catcher; Emergency braking apparatus adopts hand operation Air Valve Control service brake device; Complemental brake system uses the engine exhaust and brake device.

Described steering hardware is in the vehicle frame left side, bearing circle, power steering, pitman arm, steering side tube I connect successively, steering side tube also connects with pitman arm, the switching rocking arm connects with steering side tube II, steering side tube II connects with the propons rocking arm, the propons rocking arm connects then respectively with propons longitudinal tie and preceding, jackshaft linkage pull rod and connects, and preceding, jackshaft linkage pull rod connects with the jackshaft rocking arm, and the jackshaft rocking arm connects with the jackshaft longitudinal tie.

Owing to adopted such scheme, doube bridge was for connecting drive axle before drive configuration was changed, and back axle is a rigid drive axle, this kind type of drive solved that preceding doube bridge turns to and power transmission between contradiction.Mode with three vehicle bridge employing dispersed placement has realized that preceding doube bridge turns to, and has solved the wear on tyres problem.Because above-mentioned improvement has improved operational capability and the manoevreability and the off-road capability of car load greatly; Vehicle frame is integrally closed framed structure vehicle frame in the scheme, has forward and backward fixed supporting leg on the vehicle frame and keeps supplying the revolution subpanel of adorning use to make special vehicle reduce auxiliary girder when repacking, thereby reduce barycenter, the stability when the raising car load travels with operation.Simultaneously of the present utility model have advantages such as flexible to operation, easy to maintenance, can be widely used in manoevreability, the demanding various heavy-dutys vehicle of cross-country traveling ability.

Description of drawings

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

Fig. 1 is the utility model structural representation

Fig. 2 is the utility model birds-eye view

Fig. 3 is the utility model drive mechanism scheme drawing

Fig. 4 is the utility model vehicle frame scheme drawing

Fig. 5 is the utility model steering hardware structural representation

(1) be operator's compartment, (2) are driving engine, and (3) are driving device, (4) be vehicle frame, (5) are steering hardware, and (6) are the propons steering actuation cylinder, (7) be the propons tierod, (8) are the jackshaft steering actuation cylinder, and (9) are the jackshaft tierod, (10) be propons, (11) be transmission shaft IV, (12) are change-speed box, and (13) are jackshaft, (14) be transmission shaft I, (15) be transmission shaft II, (16) are part-time case, and (17) are transmission shaft III, (18) be back axle, (19) be preceding fixed supporting leg, (20) are the revolution subpanel, and (21) are the back fixed supporting leg, (22) be steering handwheel, (23) be power steering, (24) are steering side tube I, and (25) are the switching rocking arm, (26) be steering side tube II, (27) be the propons rocking arm, (28) are the propons steering side tube, and (29) are that preceding doube bridge is (preceding, in) the moving pull bar of bridging, (30) be the jackshaft rocking arm, (31) are the jackshaft steering side tube.

Specific embodiments

Among Fig. 1, operator's compartment (1) comprise body shell cab body, instrument carrier panel, seat, bearing circle and steering column, various instrument and display instrument, various control member, light fixture, heater unit, etc. parts.Operator's compartment (1) is positioned at the front portion of vehicle frame (4), links to each other with vehicle frame (4) by four supports; Driving engine (2) is positioned between two longerons of operator's compartment (1) rear and vehicle frame (4), is the power resources on chassis; Driving device (3) is made up of change-speed box, part-time case transmission shaft, vehicle bridge, the function of driving device (3) is wheel and the drive wheels rotation to running gear of transmission of power that driving engine (2) is provided, and the adhesive ability (friction) that wheel utilizes ground to provide makes vehicle '; Vehicle frame (4) is integrally closed framed structure vehicle frame, has preceding fixed supporting leg (19), back fixed supporting leg (21) on the vehicle frame and keeps supplying the revolution subpanel (20) that dress uses.

Fig. 3 is the drive mechanism scheme drawing.The utility model is different from the existing propons that generally uses and is steering drive axle, in, back axle is for connecting the drive configuration of drive axle, is through steering drive axle but adopt preceding, jackshaft, back axle is the drive configuration of rigid drive axle.Driving engine (2) is passed to change-speed box (12) with power, pass to part-time case (16) by transmission shaft I (14) again, part-time case (16) passes to jackshaft (13), back axle (18) by transmission shaft II (15) and transmission shaft III (17) respectively with power, jackshaft (13) is passed to propons (10) by transmission shaft IV (11) again, propons (10), jackshaft (13), back axle (18) respectively drive 2 wheel revolutionss simultaneously, thereby realize 6 * 6 all-wheel powered driving functions of the present utility model.

Fig. 2, Fig. 5 have provided steering hardware structural representation of the present utility model.Steering hardware (5) is in vehicle frame (4) left side, bearing circle (22), power steering (23), steering side tube I (24) connect successively, steering side tube I (24) also connects with switching rocking arm (25), switching rocking arm (25) connects with steering side tube II (26), steering side tube II (26) connects with propons rocking arm (27), propons rocking arm (27) connects then respectively with propons longitudinal tie (28) and preceding, jackshaft linkage pull rod (29) and connects, preceding, jackshaft linkage pull rod (29) connects (30) with the jackshaft rocking arm, and jackshaft rocking arm (30) connects with jackshaft longitudinal tie (31).The form that turns to of existing three chassis has only the form that turns to that propons list bridge turns to, and its shortcoming is that cornering resistance is big, and wear on tyres is serious in steering procedure, and manoevreability, the cross-country traveling ability of vehicle chassis are poor.For overcoming the above problems, the utility model has adopted preceding doube bridge to turn to technology, before doube bridge turn to the utilization of technology to reduce wear on tyres to have improved the portability of the crossing ability and the handling maneuver of vehicle chassis, thereby improved the maneuvering performance and the off-road capability of vehicle chassis.

Fig. 4 has provided the body frame structure for automotive scheme drawing.Vehicle frame of the present utility model (4) is integrally closed framed structure vehicle frame, has forward and backward fixed supporting leg (19) (21) on the vehicle frame (4) and keeps supplying the revolution subpanel (20) that dress uses.Adopt the vehicle frame (4) of this kind structure can make heavy motor vehicle when repacking, reduce auxiliary girder, thereby reduce barycenter, the stability when the raising car load travels with operation.

Brake equipment of the present utility model comprises service brake device, holding brake device, emergency braking apparatus and complemental brake system.Wherein the service brake device adopts pneumatic type dual line braking device, and holding brake device adopts the venting spring catcher; Emergency braking apparatus adopts hand operation Air Valve Control service brake device; Complemental brake system adopts the engine exhaust and brake device.The integrated use of these four kinds of brake equipments, making brake equipment of the present utility model is at traveling process or Parking all is safe and reliable.

Claims

1, a kind of heavy motor vehicle chassis, it has operator's compartment (1), driving engine (2), driving device (3), vehicle frame (4), wheel, steering hardware (5), brake equipment, it is characterized in that: doube bridge steering structure before steering hardware (5) adopts; Drive and adopt preceding doube bridge through-drive axle, back axle is a rigid drive axle; Be equipped with on the vehicle frame (4) and keep supplying the revolution subpanel (19) that dress uses.

2, heavy motor vehicle according to claim 1 chassis, it is characterized in that: the change-speed box (12) in the described driving device (3), part-time case (16) is installed on the vehicle frame, change-speed box (12) directly docks with driving engine, part-time case (16) connects by transmission shaft I (14) with change-speed box (12), the end of transmission shaft II (15) and transmission shaft III (17) respectively with part-time case (16) before, back mouth connects, the other end respectively with jackshaft (13), the input end of back axle (18) connects, and the input end of propons connects with the mouth of jackshaft (13) by transmission shaft IV (11).

3, heavy motor vehicle according to claim 1 chassis, it is characterized in that: described steering hardware is by bearing circle (22), power steering (23), pitman arm, steering side tube I (24) connects successively, steering side tube also connects with pitman arm (25), switching rocking arm (25) also connects with steering side tube II (26), steering side tube II (26) connects with propons rocking arm (27), propons rocking arm (27) connect then respectively with propons longitudinal tie (28) and before, jackshaft linkage pull rod (29) connects, before, jackshaft linkage pull rod (29) connects with jackshaft rocking arm (30), and jackshaft rocking arm (30) connects with jackshaft longitudinal tie (31).

4, heavy motor vehicle according to claim 1 chassis, it is characterized in that: described vehicle frame (4) is integrally closed framed structure vehicle frame, has preceding fixed supporting leg (19), back fixed supporting leg (21) on the vehicle frame (4).

5, heavy motor vehicle according to claim 1 chassis, it is characterized in that: described brake equipment comprises service brake device, holding brake device, emergency braking apparatus and complemental brake system, the service brake device adopts pneumatic type dual line braking device; Holding brake device adopts the venting spring catcher; Emergency braking apparatus adopts hand operation Air Valve Control service brake device; Complemental brake system uses the engine exhaust and brake device.