Loader is a widely used in highway, railway, construction, utilities, ports, mines and other construction projects of the earth and Shi-style machinery, it is mainly used for loading shovel of soil, gravel, lime, coal and other bulk materials can also be right ore, hard soil such as mild shovel digging operations. Facelift to the different ancillary work can be carried out earth-moving equipment, lifting, and other materials, such as timber loading and unloading operations. On the road, especially in the high-grade highway construction, loader excavation and filling works for the roadbed, asphalt and cement concrete aggregate yard work and loading and so on. In addition, can also be transported to push the soil, Calibrating the ground and pulling other machinery operations. As the loader with the operating speed, high efficiency, good mobility, easy operation, etc., so it became in the construction of earth and stone construction, one of the major models.
Is mainly used to shovel loader, loading and unloading, transport, earth and stone for a Class of bulk materials, can also rock and hard soil in mild shovel operation. If you work for a different device, you can also complete the earth-moving, lifting, loading and unloading the work of other materials. Is mainly used in highway construction project to fill roadbed digging, asphalt and cement concrete aggregates yard, loading and other operations. Because of its operating speed, good mobility, easy operation, etc., which have developed rapidly, becoming a major earthwork construction machinery.
Commonly used single-bucket loaders, according to engine power, transmission forms, walking system structure, loading of the different ways to classify.
1, Engine power:
Power of less than 74kw small loaders.
Power in the 74 ~ 147kw medium-sized loader
Power in the 147 ~ 515kw for large loaders
Power is greater than 515kw for the large loader
2, Transmission Type:
Hydraulic – mechanical transmission, shock and vibration is small, driving pieces of long life, manipulation convenience, speed and automatically adjusts between outer contain generally used in large-scale multi-loader;
Hydraulic Drive: You can stepless speed regulation, control rooms will be, but the start is poor, generally only in a small loader on the application;
Power Transmission: stepless speed, reliable operation, easy maintenance, high cost, generally adopted a large loader.
3, walking structure:
Tire Type: Quality of light, fast, flexible, high efficiency, easy to damage the road, ground pressure large, through the poor, but was widely used;
Caterpillar: ground pressure is small, through the good, low center of gravity, good stability, strong adhesion, traction, than cut into force, low speed, flexibility is relatively poor, high cost and easy to damage the road when walking.
4, loading and unloading method:
Front Discharge: simple structure, reliable, field of vision is good, suitable for a variety of work space, used widely;
Rotary: Rotary working device can be installed in the 360O’s turn on stage, side unloading do not need to turn around, operating efficiency, but the complex structure, quality, large, high cost and poor lateral stability, suitable for smaller venues than the Xia.
After the unloading type: front-end loaded, back-end unloading, operating efficiency, less job security good.
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