Engineering forklift truck

Abstract

The invention relates to an engineering forklift truck comprising a truck frame, an operator cabin in which an operating mechanism is arranged, a front driving axle, a rear driving axle, an engine, a torque converter, a variable speed case, door frame working mechanisms and balancing weights, wherein the door frame working mechanisms and the balancing weights are respectively arranged on the front end parts and the rear end parts of the truck frame. The engineering forklift truck is characterized in that the truck frame comprises a front truck frame and a rear truck frame, and the front truck frame and the rear truck frame are hinged together by pin shafts; a steering oil cylinder is installed between the front truck frame and the rear truck frame; the operator cabin is installed on the rear truck frame and generally positioned at the middle part of the entire truck; the engine, the torque converter and the variable speed case are installed on the rear truck frame, the engine is in transmission connection with the variable speed case by the torque converter, and a front transmission shaft and a rear transmission shaft of the variable speed case are correspondingly connected with the front driving axle and the rear driving axle by shaft couplings. The truck frame of the forklift truck adopts the mutually hinged front truck frame and the rear truck frame, uses the hinge steering to replace the rear wheel steering of the forklift truck and utilizes the two common driving axles of low cost to realize four-wheel driving, thereby enhancing the off-road performance of the forklift truck under adverse operating environment and being more adapted to the field operation of loading and unloading.

Description

technical field [0001] The invention relates to engineering machinery, in particular to an engineering forklift mainly suitable for loading and unloading materials in places with harsh working environments. Background technique [0002] At present, the traditional engineering forklift trucks use two-wheel drive mechanism and mast lifting mechanism, but due to the influence of its performance, it is necessary to walk with heavy loads in harsh working environments such as uneven roads, large slopes, gravel roads, and muddy fields. Come a lot of inconvenience, affect the operating efficiency of loading and unloading. First, when the forklift truck falls into a low-lying area, the two-wheel drive mechanism of the traditional engineering forklift truck will be difficult to get out of the predicament when the driving wheel slips, resulting in the failure of normal operation; second, the traditional engineering forklift truck is off the ground The height is low, and it will not be...

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional engineering forklift trucks use two-wheel drive mechanism and mast lifting mechanism, but due to the influence of its performance, it is necessary to walk with heavy loads in harsh working environments such as uneven roads, large slopes, gravel roads, and muddy fields. A lot of inconvenience, affecting the efficiency of loading and unloading

First, when the forklift truck falls into a low-lying area, the two-wheel drive mechanism of the traditional engineering forklift truck will be difficult to get out of the predicament when the driving wheel slips, resulting in the failure of normal operation; second, the traditional engineering forklift truck is off the ground The height is low, and it will not be able to pass on bad roads; third, traditional engineering forklift trucks use narrow-base tires, which have high pressure and hard tires, and are prone to sinking and slipping on muddy roads, making it impossible to walk

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