Dual-purpose traction forklift for road and railway and driving method thereof

Abstract

The invention relates to a towing fork truck for a highway and a railway and a driving method thereof. The towing fork truck comprises a fork truck body, the rear part of a tail directive wheel of the fork truck body is provided with a pair of liftable rear rail wheels controlled by a hydraulic transmission mechanism, the front part of a front driving wheel of the fork truck body is provided with a pair of front rail wheels which are fixed on a main frame and can lift with the swing of the main frame, a fork in the front of the fork truck is fixed with a base, the base is provided with a permanent seat which rotates around a vertical shaft fixed on the base, a shackle bar is fixed on the base, and the base and the top end of the vertical shaft respectively extend a supporting rod which is fixed with a fork lifter in the front of the fork body. The workers can realize the converting drive between on the road surface and the rail by simple operation, and the fork truck is particularly operated on trench platform position; when the fork truck draws different vehicles, the shackle bar does not need to be detached, the permanent seat is only rotated, and the needed shackle bar can be selected; and the fork truck has the advantages of simple structure, convenient operation, safe and reliable use, and the reduction of labor intensity of workers.

Description

technical field [0001] The invention relates to a forklift that can be used for towing operations, in particular to a towing forklift that can be switched between roads and railways, and a driving method using the towing forklift. Background technique [0002] In the prior art, there is a vehicle for road and rail dual-use by adding track wheels, such as a vehicle that can be switched on the road and railway tracks and its drive is disclosed in the Chinese invention patent application publication specification CN1681674A. method. The vehicle consists of a semi-trailer that can be driven along the railway track. The rear of the semi-trailer is provided with road wheels for driving on the road. In this way, the tractor truck can drive the semi-trailer to run on the road. In order to make the vehicle run on the track, a pair of vertically liftable track wheel units are respectively provided at the rear of the road wheel and the front of the semi-trailer. When the semi-trailer...

AI Technical Summary

Problems solved by technology

The above-mentioned road-rail vehicles are bulky and costly, and the height of the connecting parts is not adjustable, so it is more suitable for outdoor transportation operations, but it is not suitable for indoor operations in rail vehicle production plants, etc.

[0003] In the prior art, there is also a forklift with a relatively small volume to complete the traction operation. Generally, a traction frame is fixed on the fork lifting frame at the head of the forklift, and a device such as a coupler is fixed on it to cooperate with the towed vehicle. The height of the coupler can be adjusted by the fork lifting frame of the forklift, but the coupler and the traction frame are fixedly matched. When different types of couplers are needed to tow different vehicles, the original coupler needs to be removed manually and replaced with the required coupler. , the labor intensity of the workers is high and the efficiency is low. In addition, when this kind of forklift is pulling the rail vehicle, it can only artificially adjust the travel direction of the forklift so that the forklift and the rail vehicle being towed travel in a straight line. If the deviation is too large, the coupler The load carried will increase, which will easily cause damage to the coupler. When working on a platform with a trench, it is not suitable to use the above-mentioned towing forklift because the driving direction cannot be accurately controlled.

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