In addition to the tall appearance of a good truck mounted crane, the most important thing is the special function. The special function of the truck-mounted crane is mainly reflected in the lifting and transportation. The lifting capacity and load capacity directly affect the use of the whole vehicle.
One. The chassis is very important
1. The engine on the chassis of the crane is the source of all power, which not only affects the lifting capacity and speed of the crane, but also affects the load, and the power is insufficient, even if it can pull more goods, it is useless;
2. The chassis used by the truck mounted crane is a special chassis, which is mainly reflected in the beams. The chassis beams of the truck-mounted cranes are thicker than those of the general cargo chassis. Taking a single-bridge 8 tons truck-mounted crane as an example, the general cargo chassis beams are generally double-layered , The thickness is 250mm, the chassis beam of the truck-mounted crane used is a straight-through two-layer partial three-layer, and the reinforced type is a straight-through three-layer beam with a thickness of 300mm;
3. The front and rear axles of the truck-mounted crane chassis directly affect the load-bearing capacity of the vehicle. The front and rear axles of the truck-mounted crane are larger than the front and rear axles of the general cargo chassis. Taking the Dongfeng rear double axle as an example, the general cargo chassis is about 10 tons of rear axle. The rear axle of Dongfeng truck-mounted crane adopts Dongfeng Dana Bridge, generally 10 tons, 11.5 tons, and 13 tons rear axles are optional.
2. Whether the lifting capacity is strong or not depends on whether the crane is good
1. After the chassis is selected, the quality of the crane directly affects the lifting. The most important thing is the boom and a hydraulic system. The material of the boom is the core of the bearing capacity. The material is not good, and the boom is easy to deform. Take the boom as an example, it is made of manganese steel, with a hexagonal arm body, which has strong compromise and bending resistance;
2. The lifting capacity is solved. The boom speed is also a concern of many crane friends. This depends on the overall performance and oil supply of the hydraulic system. The larger the oil supply, the smoother the lifting and the faster the speed. Take the XCMG 12-ton truck-mounted crane as an example. The hydraulic system flow of the double pump is 100L/min, and the hydraulic system flow of the single pump is 63L/min. The double pump has a large oil supply, which is not only fast, but also capable of simultaneous operation. Multiple actions.
3. The container is well made and the transportation safety is guaranteed
1. No matter how strong the load-bearing capacity of the chassis is, the cargo box is not easy to use, not to mention the impact on the carrying capacity, and the transportation is not safe, so it is very important to make the cargo box well;
2. A good truck-mounted cargo box is mainly required to be strong and reliable. On the one hand, it is the material. It is recommended to choose a 5mm thick national standard material for the bottom plate of the truck-mounted cargo box. The side plate can be square or patterned according to needs. container structure, the container bottom beam, a standard sill channel, may be in order to use the pipe structure, such a high picking boxes, load capacity believed no longer a problem.
The above general analysis of the three major parts of the chassis, the crane, and the cargo box determines the determinants of the lifting and load capacity of the truck-mounted crane. On the premise of complying with the announcement, the user can choose the enhanced truck-mounted crane according to the needs for personalized customization.
