Self-propelled tractable dolly car

Abstract

The invention relates to a self-propelled tractable dolly car. The self-propelled tractable dolly car comprises a car frame, two driving devices, a steering device, a hydraulic unit, a power control device and a traction linkage mechanism. The car frame is divided into three areas which are the front area, the middle area and the rear area respectively. A steering axle is transversely installed below the front area of the car frame through the steering device via a center swinging hinge. Two steering tires are installed on the left and right side of the steering axle respectively through hydraulic steering mechanisms. The hydraulic unit is installed in the rear area of the car frame, the power control device is installed in the middle area of the car frame, and a rear traction mechanism is installed on the middle rear side of the rear area of the car frame. Four hydraulic supports are installed at the lower end of the car frame. The self-propelled tractable dolly car has the advantages of being ingenious in design, reasonable and compact in structure, convenient to operate, small in occupied space and powerful in function. The self-propelled tractable dolly car can move freely by means of the driving units and can operate within a small space. As the traction mechanisms are arranged front and back, the self-propelled tractable dolly car can be used for traction; the hydraulic supports are arranged on the periphery of the car frame and can lift the car stably, and stable operation is ensured; a rope tightener is installed at the lower end of the car frame, so that it is guaranteed that the car is firmly fixed during air transportation; the self-propelled tractable dolly car is safe and reliable when used and meets different requirements.

Description

technical field [0001] The invention relates to the field of cargo vehicles, in particular to a self-propelled towable platform trailer, which can carry (multiple functional modules) goods, can be pulled by a tractor, or can be connected and towed by multiple vehicles at the same time for long-distance rapid transportation , and under the condition that the cargo vehicle is not unloaded, it has the function of walking in a straight line and turning in a low and narrow space by relying on its own power. Background technique [0002] Traditional trucks are generally self-propelled ordinary trucks, and trailers, semi-trailers and trailers that can be towed. However, the loading platform of ordinary trucks is relatively high, and with a certain height of the cargo, it cannot It is suitable for loading and unloading goods in a low space. At the same time, the size of the cab is increased in addition to the size of the platform for horizontal ordinary trucks. Therefore, it cannot...

AI Technical Summary

Problems solved by technology

[0002] Traditional trucks are generally self-propelled ordinary trucks, and trailers, semi-trailers and trailers that can be towed. However, the loading platform of ordinary trucks is relatively high, and with a certain height of the cargo, it cannot It is suitable for loading and unloading goods in a low space. At the same time, the size of the cab is increased in addition to the size of the platform for horizontal ordinary trucks. Therefore, it cannot meet the actual needs

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