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Quick coupler | Hydraulic drive: Install two sets of oil circuits to quick-change joints through the oil pump sub-control valve of the excavator itself, and use hydraulic drive cylinders to meet the needs of replacing the excavator working parts. However, this method will increase the routing system and hydraulic cylinders, the cost is relatively high, and the hydraulic pipeline needs to be modified. | ||
Mechanical: Use the rotating mechanical screw to adjust the distance of the movable block to achieve the disassembly and installation of the excavator working parts. Domestic manufacturers' products are mainly divided into two types: pin type and screw type. | |||
Bucket | Standard bucket: The material is generally made of domestic high-quality high-strength structural steel, such as Q345B, 16Mn, etc. The bucket mouth area is large, with a large stacking surface and a high filling coefficient, which can save working time and improve efficiency. However, the standard plate thickness is used, and there is no obvious reinforcement process on the bucket body. It is suitable for lighter working environments such as general clay and loose soil excavation and loading of sand, soil, and gravel. It is also called an earthwork bucket. | ||
Reinforced bucket: wtihhigh-strength wear-resistant steel materials are used to reinforce high-stress and easily worn parts. The gear seat plate and side blade plate of the vulnerable parts are often made of domestic high-quality high-strength wear-resistant steel NM360, and the plate is thickened. It also greatly improves the strength and wear resistance, and greatly extends the service life. It is suitable for heavy-duty operations such as excavating hard soil, soil mixed with softer stones, and loading crushed stone and gravel. | |||
Mining bucket: The whole bucket is made of thickened plate, the high stress part is especially strengthened, the easy-to-wear part is made of thicker material, the bottom is reinforced with reinforcement plate, side guard plate, protective plate, high-strength bucket tooth seat, and rock bucket teeth are used for bucket teeth. Swedish HARDOX ultra-high strength wear-resistant steel , and more outstanding economy. It is suitable for heavy working environments and is widely used in harsh working conditions | |||
Breaker | Impact breaker: It is broken by high-speed impact, with high breaking efficiency, and can cause great damage to the target object in a short time. Hydraulic breaker: It is driven by hydraulic system, has strong breaking force and is easy to operate. It is a widely used type at present. Electromagnetic breaker: It uses electromagnetic induction principle to break, has fast breaking speed, and can quickly complete the breaking task. Pneumatic breaker: It uses compressed air as the power source, and has certain characteristics and applicable scenarios. | ||
Hydraulic shears | Mechanical hydraulic shears: Use the excavator bucket cylinder to act on the connecting rod rocker arm and apply external force to the upper shear body. The lower shear body is fixed on the bucket rod. No other auxiliary cylinders and corresponding hydraulic systems are needed to achieve shearing operations. Suitable for shearing of thin steel structures and scrap steel, and can cut iron materials such as steel bars, pipes, and cans. | ||
Fixed hydraulic shears: Comes with a hydraulic cylinder and uses the powerful thrust of the cylinder for shearing. The advantage is that the shearing force is greater than that of mechanical hydraulic shears; the disadvantage is that it cannot rotate, and it is not convenient to find the correct position when dismantling or shearing steel structures. It is often used for dismantling scrapped cars, processing scrap steel and other scrap metals. | |||
Rotary hydraulic shears: The equipment can rotate 360 degrees, has a wider range of applications, and is more convenient to use. It can be divided into single-cylinder and double-cylinder types. |