The loader is a kind of earth and stone construction machinery that is widely used in construction projects such as highways, railways, buildings, water and electricity, ports, and mines. It is mainly used for scattered materials such as shovel, sandstone, lime, and coal., Hard Earth and other aspirations.So what kind of loader is divided into?Lets take a look with Xiaobian!
Special working device for loader
1. Increase the fight: On the basis of the standard model configuration, increase the fighting capacity to improve the work efficiency to satisfy the shovel of the lighter material, such as coal.
2. King of Rock: It is mainly for loading and unloading rock conditions. The arms of the bucket and the support plate bucket have been strengthened. It is equipped with high -wear -resistant auxiliary blade and high -wear -resistant essence.Life life of fighting.
3. High -unloading: To meet the height of the fence of the increasingly increasing section of the truck, for the low proportion of coal and other materials, it can meet the high unloading, and it can also meet the large loading capacity, which greatly improves the efficiency of work.
4. Side unloading: For working devices for small fields, especially tunnel operations, buckets can be rolled in one direction, and the drivers labor intensity can be effectively reduced in tunnel operations.
5. Kiming fork: It is mainly used in forest farms and ports to carry and load and unload materials for materials.
6. Quick replacement device: It is mainly for the working environment where a variety of materials need to be loaded and unloaded in the workplace. The driver can quickly replace the working device in the cab.Fighting, pinch fork, etc.
7. Grasping grass bucket: It is mainly used in plant straw and other grabs, which has the characteristics of large opening, compactness, and high efficiency of grass grasp.
Principles of loader selection
1. Selection of the model: It is mainly selected and determined according to the operation occasions and uses.Generally operate at the quarry and soft base, and choose the tire loader to equip the slip chain;
2. Selection of power: Generally, it is mostly used in engineering machinery diesel engines. It operates in special regions, such as where an altitude is higher than 3000m.
3. Selection of transmission type: Generally, hydraulic force -mechanical transmission.The key components are the choice of torque transformer.Most of the loaders produced in China use bi -turbine and single -stage two -phase liquid torque converters.
4. When using the loader, you must also fully consider the braking performance of the loader, including a number of three types: braking, parking braking and emergency braking.There are three types of brakes: hoof, pliers and wet multi -piece.The driver of the brakes generally uses a force device. Its power source has compressed air, gas top oil and hydraulic type.The commonly used air -top oil braking system is generally used, which generally uses a dual -circuit braking system to improve the safety of driving.
Loader classification
Commonly used single -fighting loaders, classify according to engine power, transmission form, walking structure, and different loading methods.
1. Engine power:
① The power is less than 74KW as a small loader.
② The power is 74 ～ 147kW is a medium -sized loader
③ The power is 147 ~ 515kW is a large loader
④ The power is greater than 515kW.
2. Transmission form:
① The liquid force — mechanical transmission, small impact vibration, long transmission parts, convenient manipulation, automatic adjustment between speed and external load can be adjusted, generally mostly used in medium and large loaders;
② Liquid force transmission: It can be regulated without leveling, easy to control, but poor startup. Generally, it is only used on a small loader;
③ Electricity transmission: Schedule speed adjustment, reliable work, simple maintenance, and high cost, generally use on large loaders.
3. Walking structure:
① Tire type: Light quality, fast speed, flexible maneuverability, high efficiency, not easy to damage the pavement, large ground compression, poor passability, but being widely used;
② Track type: The grounding is less than the pressure, the gravity, low center of gravity, good stability, strong attachment, large traction, larger than cut force, low speed, poor flexibility, high cost, and easy to damage the pavement when walking.
4, loading and unloading method:
① The front unloading type: simple structure, reliable work, good vision, suitable for various operating venues, wide applications;
② Rotary type: The working device is installed on a transition of 360 ° that can be turned around. Uninstalling the side does not require turning around, high operating efficiency, but complex structure, high quality, high cost, and poor side stability, suitable for small -chivalry venues.
③ Rear unloading type: front -end installation, rear -end unloading, high operating efficiency, and work safety.

Related tags： Machinery