As a powerful engineering machinery, the force structure of the excavator plays a key role and determines the working performance, stability and safety.
The chassis of the excavator is the foundation of the equipment, which is composed of crawler tracks, drive wheels, supporting rollers, sprocket wheels, etc. The crawler tracks provide good ground contact area and stability, allowing the excavator to travel and operate in complex terrain. The drive wheel transmits power to push forward, and the supporting rollers and sprocket wheels support the crawler tracks to ensure smooth operation. When working, the chassis bears the ground reaction force, the weight of the equipment and the lateral force generated by excavation, so its structure must be strong, and the balance and stability must be considered to prevent tilting or overturning.
The working device includes a boom, a dipper and a bucket. The hydraulic system drives the excavation, loading and other operations. The boom connects the chassis and the dipper, bears the weight of the dipper and bucket and the excavation reaction force, and is made of high-strength steel to ensure strength and rigidity and avoid deformation or breakage. The dipper connects the boom and the bucket, transmits force and adjusts the excavation angle. Its length and strength determine the excavation range and excavation force, and high-strength steel is also required to withstand huge forces. The bucket directly contacts the material for excavation and loading. The shape and structure design take into account the material characteristics and excavation efficiency. It is made of wear-resistant steel, has good wear resistance and strength, and can withstand impact and friction.
The hydraulic system is the power source. The hydraulic pump converts the engine power into hydraulic energy, and then converts it into mechanical energy through hydraulic valves and hydraulic cylinders to drive the working device. The hydraulic cylinder bears huge pressure and tension. The structure must be strong and have good sealing performance to ensure the normal operation of the hydraulic system.
The cab is the operator's workplace and also needs to withstand certain forces. It is made of high-strength steel and protective glass to provide protection for the operator, while considering comfort and operability to improve work efficiency.
In short, the excavator's force structure is complex and important. Each part cooperates with each other to withstand forces in different directions to ensure that the equipment operates stably and efficiently in harsh environments. For second-hand dealers, understanding the force structure can better evaluate the quality and performance of second-hand equipment and provide professional services to customers. For users, the correct use and maintenance of the force structure can extend the life of the equipment, improve work efficiency and ensure operational safety.