A dual-purpose excavator is a type of mechanical equipment that is specially used for excavation and construction in water.
Its working principle is based on the coordination of the hydraulic system and the excavation device, and various work tasks are completed by controlling the action of the excavation device.
1.Hydraulics: Dual-purpose excavators use hydraulics to provide power and control the movement of various components.
The system consists of a hydraulic pump, a hydraulic cylinder and a control valve.
The hydraulic pump is responsible for pumping the hydraulic oil from the tank and delivering it to the hydraulic cylinder through the pipeline.
Under the action of the hydraulic cylinder, the pressure of the hydraulic oil is converted into mechanical energy, which pushes the excavation device to work.
2.Excavator: The excavator of a dual-purpose excavator includes components such as a stick, a stick cylinder, a stick pivot, and a stick sleeve.
The stick controls the lifting and rotation of the bucket through the telescopic movement of the hydraulic cylinder, and the rotation of the stick pivot can adjust the tilt angle of the bucket to adapt to different excavation needs.
3.Track System: Dual-purpose excavators use a track system to provide the ability to move and maneuver.
The track system consists of a drive device, track sprockets and track shoes, etc.
The drive device controls the movement of the track sprockets and drives the track shoes to realize the movement of the machinery.
The drive also controls the steering of the tracks, allowing the machine to move and position precisely.
The working principle of the dual-purpose excavator can be described by the following steps: The machine operator controls the operation of the hydraulic system through a controller or joystick.
The hydraulic pump starts working, sucking the hydraulic oil from the tank and converting its pressure into mechanical energy.
The hydraulic oil is delivered to the hydraulic cylinder of the excavator through the pipeline, which triggers the movement of the excavator.
Next, the pressure of the hydraulic oil causes the stick of the digging device to expand and contract, controlling the lifting and rotation of the bucket.
The machine operator can adjust the rotation angle of the stick pivot to change the angle of inclination of the bucket as needed.
In this way, the bucket can be excavated according to a predetermined path, depth and angle.
The track system also began to work, and the drive unit made the track shoes rotate by controlling the movement of the track sprockets, thus realizing the movement of the machine.
The machine operator can position, move and maneuver the machine by controlling the steering of the tracks.
The work of a dual-purpose excavator in the water can be illustrated by the following example: For example, when building a dam or digging silt on the water, the machine operator can lower the bucket into the water and dig the silt or debris out of the bottom by the movement of the excavation device.
By adjusting the tilt angle of the stick, the excavator can accurately control the depth and direction of the digging.
In some other related work, dual-purpose excavators can also be used for stacking in the water, grabbing objects, cleaning the bottom of rivers or lakes, and rescuing trapped people.
It not only has the function of a land excavator, but also is more adapted to the needs of the underwater environment.
To sum up, the working principle of the dual-purpose excavator is based on the coordination of the hydraulic system and the excavation device.
The hydraulic system provides power and control, the excavation device realizes the movement of the bucket, and the crawler system provides the ability to move and maneuver the machine.
With flexible operation and adjustment, the dual-purpose excavator can efficiently complete a variety of underwater excavation and construction tasks.