In the water operation scene, the water excavator shows its unique value. It can operate stably on the water surface, which contains a subtle principle behind it. From the perspective of buoyancy and support, the design of the pontoon of the water excavator is exquisite. According to Archimedes' principle, the buoyancy of an object is equal to the gravity of the liquid displaced. The pontoon of the water excavator is large in volume and can displace a large amount of water. The buoyancy generated by this is enough to support the weight of the excavator, allowing it to float steadily on the water surface. At the same time, the crawler of the excavator cooperates with the pontoon. The crawler increases the contact area with the water surface or underwater ground, disperses the weight, and plays an auxiliary role in maintaining the stability of water operations.
In terms of power and operating principles, it is similar to ordinary land excavators. The power generated by the engine is transmitted through the hydraulic system. The hydraulic system first converts the mechanical energy of the engine into hydraulic energy, and then converts the hydraulic energy into mechanical energy, thereby driving the boom, dipper rod, bucket and other moving parts. When working on the water, the driver manipulates the control lever to control the bucket to perform excavation through the hydraulic system. For example, when digging underwater soil, the bucket can be smoothly inserted into the soil, and then the soil is scooped up by the coordinated movement of the boom and the dipper, and then loaded onto a transport ship or other equipment.
From the perspective of special design and adaptability principles, water excavators are specially designed for underwater working environments. Its key components such as the engine, hydraulic system, and electrical system are sealed and waterproofed, and special seals and waterproof materials are used to effectively prevent water from entering the internal system, ensuring that these components can operate normally in a humid or even completely underwater environment. Moreover, considering the complex working environment on the water, factors such as water flow and waves will interfere with the stability of the excavator. Water excavators are equipped with special balancing and stabilizing devices, such as adjustable legs or balancing weights. These devices can be adjusted according to the actual working environment and working conditions to ensure the safety and stability of the excavator when working on the water.
In the second-hand equipment market, there is also a certain demand for water excavators. Some professional second-hand engineering equipment dealers will provide water excavator buying and selling services. These dealers usually conduct detailed inspections and evaluations on the acquired water excavators. They will check the buoyancy of the pontoon, the sealing performance of key components, the operating conditions of the power system and hydraulic system, etc. During the sales process, dealers will provide buyers with detailed inspection reports of the equipment, including information such as the length of use of the equipment, maintenance records, and the source of the equipment. For example, on the well-known domestic second-hand engineering equipment trading platform, there are many reputable dealers specializing in the trading of water excavators. Buyers can communicate with dealers through these platforms to understand the specific conditions of different models of water excavators and make choices based on their actual needs and budget.
Water excavators rely on these unique principles to play an irreplaceable role in water construction, river dredging, wetland development and other fields. With the continuous development of related technologies, the performance and adaptability of water excavators are expected to be further improved, providing stronger support for water operations.