The truck carrying crane is modified on the basis of the ordinary truck, with a cargo compartment, still has the function of the ordinary truck. In addition to the completion of the cargo loading and unloading of the car, the truck can also complete the cargo loading and unloading between the cars, as well as other lifting operations.
The truck carrying crane is modified on the basis of the ordinary truck, with a cargo compartment, still has the function of the ordinary truck. In addition to the completion of the cargo loading and unloading of the car, the truck can also complete the cargo loading and unloading between the cars, as well as other lifting operations. The lifting device of the truck has three layout forms: front, middle and rear.
front-mounted
The lifting device is arranged between the cab and the carriage. This form is mostly used for lifting capacity of small 1t medium and small truck-mounted lifting transport vehicles, suitable for loading and unloading of packaged goods. This arrangement can make full use of the cargo area, and ensure that the boom can reach all positions of the carriage within the allowed extension length and the corresponding movement conditions, and the carriage area is high. In addition, the lifting device is closer to the car engine. The pipeline from hydraulic pump to hydraulic cylinder of crane is short, the flow resistance is small, and the hydraulic transmission efficiency is higher than other layout forms. In the vehicle layout of this model, attention should be paid to prevent front axle overload.
middle-mounted
The lifting device is arranged in the middle of the car compartment. The lifting capacity of this form is generally in the range of 1 ~ 3t, and the use of extended large and medium-sized car chassis. This arrangement is characterized by short boom, easy to meet the requirements of the shaft load distribution, basically can maintain the original car center of mass position, suitable for loading and unloading and transportation of pipe building materials, strip objects and wood, goods along the longitudinal placement of the carriage. However, because the crane is arranged in the middle of the carriage, the utilization rate of the carriage area is low.
rear-mounted
Lifting equipment is arranged at the rear of the carriage. The small compartment area has a high utilization rate, and can easily load and unload the goods in the full trailer pulled by the car. However, the axle load distribution of the original car was changed, which made the maneuverability worse. In addition, the main frame needs to be modified, and the load has deteriorated, and the hydraulic pipeline is too long and inconvenient to arrange.
