Chassis under limited conditions

Abstract

The invention discloses a chassis under limited conditions, comprising a car frame, front and back axles, a leaf spring suspension, a car engine, a clutch, a car gearbox, a transfer case and a fuel tank. The chassis is characterized in that car frame has narrow front and wide back structure; a chassis roll cage which can improve torsional rigidity of the car frame is arranged in the middle of the car frame; the engine and the car gearbox are separately arranged; the engine is at the front end of the car frame; the car clutch is arranged at an output end of the engine; the car gearbox is at the middle position of the car frame and is connected with the clutch through a driving shaft. The chassis has simple structure, low cost, safe driving and good passing ability under complex road conditions such as muddy road, grassland, desert and the like.

Description

technical field [0001] The invention belongs to the field of trucks, and in particular relates to a vehicle chassis under extreme working conditions, which is suitable for 4x4 off-road vehicles under extreme working conditions. Background technique [0002] At present, automobile manufacturers in the world have developed different styles of 4x4 extreme working condition vehicles. Their common characteristics are: the frame is wide at the front and narrow at the rear; The power from the engine is directly transmitted to the gearbox through the clutch, and then transmitted to the transfer case through the transmission shaft after the gearbox is shifted, and then redistributed by the transfer case according to the demand, and then transmitted to the front and rear drive axles respectively , thereby driving the vehicle forward. This traditional arrangement combines the engine, clutch, and gearbox into one body and is installed on the front end of the frame through the engine mo...

AI Technical Summary

Problems solved by technology

When the vehicle is driving on a bad road, the vibration will be multiplied. The engine mount works under the condition of a large vibration load, which is easily damaged and affects the safety of the vehicle.

In addition, because the load of the vehicle under extreme working conditions is mainly concentrated on the cab, engine and gearbox, this arrangement of integrating the engine, clutch, and gearbox will cause uneven load distribution between the front and rear of the vehicle, and the vehicle is prone to throwing when turning. In addition, the front of the frame is wide and the rear is narrow, and the driving stability is not good. The multi-leaf spring leaf spring suspension is used to raise the center of gravity of the vehicle, and the vehicle is driving on a bumpy road. In complex road conditions, rollover is more likely to occur. Once the vehicle rolls over, the main and auxiliary fuel tanks arranged on the outside of the frame will collide with the ground and may explode. The lives of drivers and passengers will not be guaranteed.

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