Long arm mountain raise wheel loader for special work
Long arm mountain raise wheel loader for special work
The shoveling and loading and unloading of the loader is realized by the movement of its working device. The working device of the loader consists of bucket 1, boom, 2, connecting rod, 3, rocker arm, 4 and bucket cylinder, 5, boom cylinder, etc. The entire working device is hinged on the frame. The bucket is hinged with the bucket cylinder through a connecting rod and a rocker arm for loading and unloading materials. The boom is hinged with the frame and the boom cylinder to lift the bucket. The bucket turning and the boom lifting are operated hydraulically.
Classification of loaders
The commonly used single-bucket loaders are classified according to the engine power, transmission mode, walking system structure, and loading method.
1. Engine power: ① Small loader with power less than 74kw. ②Medium loaders with power from 74 to 147kw ③Large loaders with power from 147 to 515kw ④Extra-large loaders with power greater than 515kw.
2. Transmission form: ①Hydraulic-mechanical transmission, small impact and vibration, long life of transmission parts, convenient operation, automatic adjustment of vehicle speed and external load, generally used in medium and large loaders; ②Hydraulic transmission: stepless Speed regulation, easy operation, but poor startability, generally only used on small loaders; ③Electric drive: stepless speed regulation, reliable work, simple maintenance, high cost, generally used on large loaders.
3. Walking structure: ①Tire type: light weight, fast speed, maneuverability, high efficiency, not easy to damage the road surface, large ground contact pressure, poor passability, but it is widely used; ②Crawler type: low ground contact pressure, good passability , Low center of gravity, good stability, strong adhesion, large traction, large specific cutting force, low speed, relatively poor flexibility, high cost, easy to damage the road surface when walking.
4. Loading and unloading methods: ①Front unloading type: simple structure, reliable work, good vision, suitable for various work sites, wide application; ②Rotary type: working device is installed on a turntable that can rotate 360°, side unloading is not required U-turn, high work efficiency, but complex structure, high quality, high cost, poor lateral stability, suitable for smaller venues. ③ Rear unloading type: front-end loading, back-end unloading, high work efficiency, poor work safety.
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