A truck crane is not just a universal and multifunctional special equipment, but also a rather complex machine. There are many models of truck cranes, which are similar in their design, and the differences relate to the technical capabilities of this or that machine.
The design of a truck crane consists of two main parts: non-turn and turn. It is the slewing part that is responsible for all working operations, which includes: telescopic boom, mechanism for changing its outreach, rotating platform, slewing mechanism, winch lifting mechanism, cab, electrical equipment, counterweight, hydraulic equipment with pipelines. In the rental of a truck crane, these are the devices used. The boom consists of extendable sections (welded steel structures), base and length change mechanism. When extending the sections, friction force is generated and to reduce it, sliding plates are installed on them.
The boom is designed with side stops and pads to prevent lateral displacement of the sections during extension. The very mechanism for changing the boom outreach is a hydraulic cylinder. If the crane is characterized by a higher lifting capacity, it is equipped with two mechanisms. Telescopic boom, hydraulic cylinders, lifting mechanism, cab, counterweight, hydraulic equipment of the crane are installed directly on the turntable, which is a solid welded metal structure. The rotation of this platform is ensured by the slewing mechanism consisting of a hydraulic motor, slewing ring.
The winch is responsible for lifting and lowering loads. Winches can be of various designs, but the common components are always the brake, gearbox, load drum and hydraulic motor. All crane operations are carried out from the crane operator's cabin. The cabin of any truck crane is equipped with all necessary devices, such as controls, instrument panel, control panel. For comfort, manufacturers install in the cabs fans, heating units, windshield wipers, adjustable seats, etc. Depending on the model of the truck crane, the set of equipment in the cabs may differ.
As for the electrical equipment with safety devices, this is an important component of the crane's slewing part. It is it that is responsible for the safety of the truck crane operation. For example, for the electrical connection between the non-turning part of the crane and the electrical equipment of the turning part of the crane is designed slip ring, and various safety devices are used as a safety device to protect the structures and mechanisms of the machine from breakage. The counterweight is of special importance during cargo lifting operations. Its main function is to ensure the stability of the crane. The counterweight is represented by a steel casting that regulates the distribution of gravity.
Finally, hydraulic equipment with pipelines, as a component of the crane slewing part, is designed to regulate the direction of flow of working fluid
