Pipeline thruster with protection function

Abstract

The invention provides a pipeline thruster with a protection function. A drive motor, a propeller and a rotary shaft are installed in a flow guide pipe. The outer portion of the drive motor is sealed through a motor shell and an axle housing. Strip-shaped through grooves are formed in the flow guide pipe. Water flow enters the flow guide pipe through the strip-shaped through grooves and is driven by the propeller to generate counter acting force to push a ship to move. By the adoption of the thruster, the work efficiency of equipment can be improved, the propeller is effectively protected, meanwhile, the strip-shaped through grooves in the flow guide pipe can make a water body circulate, can protect equipment operation and further can act together with the motor shell to achieve the effective water cooling and heat dissipation effects on the drive motor, and the equipment structure is greatly simplified.

Description

technical field [0001] The invention relates to ship driving equipment, in particular to a pipeline thruster with protection function. Background technique [0002] A ship propeller is an energy converter that converts natural force, manpower or mechanical energy into ship thrust. Common propellers include pod propellers, pump jet propellers, etc. Pod thrusters such as figure 1 As shown, it is a propulsion device integrating propulsion and steering device, mainly composed of propeller 101, propulsion electrode and cooling device. This kind of propeller is more flexible, but the disadvantage is that the speed is low, and it is generally difficult to exceed 5000 revolutions At the same time, the cost is expensive but the failure rate is high, and the external propeller lacks a protective structure, and it is easy to entangle foreign objects or collide with reefs in the water. pump jet propeller such as figure 2 As shown, it is a device that utilizes the reaction force gen...

AI Technical Summary

Problems solved by technology

Pod thrusters such as figure 1 As shown, it is a propulsion device integrating propulsion and steering device, mainly composed of propeller 101, propulsion electrode and cooling device. This kind of propeller is more flexible, but the disadvantage is that the speed is low, and it is generally difficult to exceed 5000 revolutions / min, while the cost is expensive but the failure rate is high, and the external propeller lacks a protective structure, and it is easy to entangle foreign objects or collide with reefs in the water

pump jet propeller such as figure 2 As shown, it is a device that utilizes the reaction force generated by the high-speed jetting of water to propel. The pump-jet propeller 200 is generally used in submarines. Its structure is relatively complicated, and the motor rotates at a high speed but generates a large amount of heat. It requires an independent water cooling system. , both the structural accuracy and the manufacturing process are very high, and the maintenance is difficult

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