Heavy-load shaftless propeller

Abstract

The invention discloses a novel heavy-load shaftless propeller which comprises a rotary driving device, a rotary oil distribution valve and a motor. The rotation driving device comprises a hub, a shell, an inner gear, an axial oil seal, a sealing ring, thrust units, an end cover, a first bearing, a second bearing, a third bearing, a pressing spring and an eccentric circle component. Hydraulic oilis adopted as a power source, oil is sequentially supplied to all the thrust units through the rotary oil distribution valve, the thrust units push the inner gear to do planar motion, and finally rotary output of the propeller is achieved through the gear meshing effect. A complex transmission mechanism is omitted, the overall size is reduced, stepless speed regulation can be achieved, the speed regulation range is large, the maneuverability is good, the generated torque is large, and the heat dissipation effect is good.

Description

technical field [0001] The invention belongs to the technical field of thrusters, in particular to a heavy-duty shaftless thruster. Background technique [0002] With the deepening of ocean development, the application of ocean exploration equipment is becoming more and more extensive. Basically all ocean exploration equipment uses propellers as output devices in water. Among them, most of the propellers adopt the arrangement form in which the output shaft of the motor drives the propeller blades to rotate, that is, the shaft propeller. The overall structural arrangement of the shafted propeller is that the motor transmits power to the propeller through the main shaft, and drives the propeller to rotate to generate thrust. Although this arrangement is simple in principle, it also has some obvious disadvantages in actual implementation: (1) The shafting used to transmit power to the propeller will prevent fluid from passing through the propeller, so that substances such as ...

AI Technical Summary

Problems solved by technology

Although this arrangement is simple in principle, it also has some obvious disadvantages in actual implementation: (1) The shafting used to transmit power to the propeller will prevent fluid from passing through the propeller, so that substances such as seaweed or similar will be entangled in the propeller. (2) As the power of the main engine increases, the volume of the propulsion shafting will become larger, the structure will be extremely complex, and the heat dissipation requirements will gradually increase; (3) The length of the propulsion shafting will increase and the sealing system will increase. Existence increases the loss of the propulsion system during the energy transfer process, reduces the transfer efficiency, and increases the cost of use

However, it is only suitable for occasions with relatively small power. Once the power demand is large, there are still defects such as large volume, difficult heat dissipation, large energy loss, high cost and difficult maintenance.

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