The loader is an earth-rock construction machine widely used in road, railway, construction, hydropower, ports, mines and other construction projects. It is mainly used for shoveling soil, sand, lime, coal and other bulk materials, and also for ore , hard soil, etc. for light shoveling operations. Changing different auxiliary work devices can also be used for loading and unloading earthmoving, lifting and other materials such as wood.
In the construction of roads, especially high-grade roads, loaders are used for the filling and excavation of roadbed works, asphalt mixing, and aggregate and loading of cement concrete yards. In addition, operations such as pushing soil, leveling the ground, and pulling other machinery can also be carried out. As the loader has the advantages of high working speed, high efficiency, good maneuverability, and easy operation, it has become one of the main types of earth and stone construction in engineering construction.
The loader's digging and loading and unloading operations are achieved through the movement of its work equipment. The working device of the loader is composed of a bucket 1, a boom 2, a connecting rod 3, a rocker arm 4, a transfer cylinder 5, and a boom cylinder 6. The entire working device is hinged on the frame 7 . The bucket is hinged to the transfer cylinder by connecting rods and rocker arms for loading and unloading materials. The boom is hinged with the frame and boom cylinders to lift the bucket. Flip buckets and booms are hydraulically operated.
The loader is mainly used for shoveling, loading, unloading, earth moving, and stone materials, as well as light shoveling of rock and hard soil. If you change the different working devices, you can also complete the tasks of dozing, lifting, and loading and unloading other materials. In road construction, it is mainly used for the filling and excavation of roadbed works, and for aggregate and loading of asphalt and cement concrete stockyards. Because it has the advantages of fast working speed, good maneuverability, and easy operation, it has developed rapidly and has become the main machinery in earth and stone construction.