Frame structure with liftable axle

Abstract

The invention discloses a frame structure with a liftable axle. The frame structure comprises a frame and one or more axles arranged below the frame, each axle is composed of an axle body and a steelplate spring, a front suspension body and a rear suspension body are fixed below the frame, a front lining block and a rear lining block are arranged in the front suspension body and the rear suspension body respectively, and the front lining blocks and the rear lining blocks are located between the ends of the steel plate springs and suspension inner arc-shaped plates. A front lining block pin shaft for fixing the front lining block is arranged on the front suspension, and a rear lining block pin shaft for fixing the rear lining block is arranged on the rear suspension. The invention discloses a frame structure with a liftable axle. When the traction force of the vehicle on an uphill road section is insufficient, the front and rear filler blocks are detached, the bearing point of the axlemoves backwards, the axle load is reduced, the saddle load is increased, the pressure of the tractor on the ground is increased, the traction force is increased, the climbing performance of the vehicle is improved, tire slipping is avoided, the turning performance of the vehicle is improved, and the service life of tires is prolonged.

Description

technical field [0001] The invention relates to a vehicle frame structure, more specifically, to a vehicle frame structure with liftable axles. Background technique [0002] Due to the uncertain slope of the road surface, the uncertain potholes, the uncertainty of the radius of the curve, etc., only short vehicles with limited total length can be used in places with limited transportation. For trucks with two bridges or more than two bridges, if they encounter a climbing section, most of the weight of the carriage and goods will be distributed to the axles, so that the axle load is relatively large and the saddle load of the tractor is relatively small. As a result, the friction between the tractor and the ground is small. At this time, even if the tractor has enough power, the actual traction force of the tractor on the vehicle will be insufficient due to the too small pressure on the ground, and the climbing cannot be achieved. , It may also cause the tires of the vehicle...

AI Technical Summary

Problems solved by technology

For trucks with two bridges or more than two bridges, if they encounter a climbing section, most of the weight of the carriage and goods will be distributed to the axles, so that the axle load is relatively large and the saddle load of the tractor is relatively small. As a result, the friction between the tractor and the ground is small. At this time, even if the tractor has enough power, the actual traction force of the tractor on the vehicle will be insufficient due to the too small pressure on the ground, and the climbing cannot be achieved. , it may also cause the tires of the vehicle to rub against the ground and slip, not only can not achieve normal climbing, but also shorten the service life of the tires

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