Submersible excavators, a special engineering machinery that can operate underwater, play an important role in many engineering fields with their unique design and powerful functions.
The working principle of submersible excavators is mainly based on the following aspects:
First, sealing and waterproofing are the key. All parts of the submersible excavator, including the engine, hydraulic system, electrical system, etc., are specially sealed to ensure that they will not be invaded by water during underwater operations. Sealing materials usually have good waterproof and pressure resistance, can withstand a certain water pressure, and ensure the normal operation of the equipment.
In terms of power system, submersible excavators generally use diesel engines or electric motors as power sources. Diesel engines have strong power output, but require special exhaust and intake systems to prevent water from entering the engine. Electric motors are clean and quiet, and are suitable for underwater operations with high environmental requirements.
The hydraulic system is the core part of the submersible excavator. It converts the power of the engine into hydraulic energy through a hydraulic pump, and then transmits the hydraulic energy to various actuators, such as digging arms, buckets, walking mechanisms, etc. through hydraulic pipelines. When working underwater, the hydraulic system needs to have good sealing and pressure resistance to ensure that the hydraulic oil will not leak and can withstand the underwater pressure.
In terms of operation and control, submersible excavators are usually equipped with a special control system, and the operator can control the movement of the excavator through joysticks, buttons and other devices. The control system needs to have good waterproof performance and reliability to ensure that the movement of the excavator can be accurately controlled when working underwater.
When working underwater, the excavation principle of the submersible excavator is similar to that of an ordinary excavator. The excavation and transportation of underwater materials are achieved by extending and contracting the excavation arm and opening and closing the bucket. The difference is that the submersible excavator needs to consider underwater buoyancy, water flow and other factors, and has higher requirements for operating technology.
For second-hand dealers, understanding the principles of submersible excavators helps them better evaluate the performance and value of second-hand equipment. When acquiring second-hand submersible excavators, second-hand dealers can judge the quality and service life of the equipment by checking the sealing performance, power system, hydraulic system, control system and other aspects. At the same time, when selling second-hand submersible excavators, second-hand dealers can introduce the working principle and advantages of submersible excavators to customers to enhance customers' confidence in second-hand equipment.
In short, the working principle of a submersible excavator is a complex and sophisticated system that integrates multiple technologies such as sealing technology, power system, hydraulic system, control system, etc. Understanding the principle of a submersible excavator is of great significance for the correct use and maintenance of a submersible excavator and for evaluating the value of second-hand equipment.