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Underwater propeller thruster with self-diagnosing function

A technology of propeller thruster and diagnostic function, which is applied in the direction of propulsion components, ship propulsion, propulsion engine, etc., can solve the problems of no self-diagnosis function and no consideration of the force on the motor shaft, and achieves accurate speed control capability, compact structure, The effect of reducing the failure rate

Inactive Publication Date: 2009-06-10
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the switch improves the safety of starting or running, but it also has no self-diagnosis function and does not consider the force of the motor shaft.

Method used

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  • Underwater propeller thruster with self-diagnosing function
  • Underwater propeller thruster with self-diagnosing function
  • Underwater propeller thruster with self-diagnosing function

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0030] combined with figure 1, the underwater thruster of the present invention consists of a lock nut 1, a propeller 2, an anti-rotation pin 3, a drive shaft 4, a sleeve 5, a pin 6, a buffer element 7, a stainless steel thrust bearing 8, a front end cover 9, and an O-ring I10, platinum resistance temperature sensor 11, motor 12, cable screw joint 13, waterproof cable 14, screw 15, circlip 16, imported skeleton oil seal 17, motor connection screw 18, housing 19, water leakage detection sensor 20, encoder 21, O-shaped sealing ring II22, DSP controller 23, connecting stud 24, motor driver 25, and rear end cover 26 are composed. The O-ring I10 is set on the front end cover 9, the O-ring II22 is set on the rear end cover 26, the front end cover 9 and the housing 19, and the housing 19 and the rear end cover 26 are all connected by screws 15, so that the front end Co...

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PUM

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Abstract

The present invention provides an underwater propeller pusher which has self diagnosing function and comprises a driving electrical motor, a propeller, an electrical motor driver, a DSP controller, a leaking detecting sensor, a platinum resistance temperature sensor and a coding device that is used for measuring the rotating speed of the electrical motor; wherein, the driving electrical motor, the electrical motor driver, the DSP controller, the leaking detecting sensor, the platinum resistance temperature sensor and the coding device are all encapsulated inside the sealed and dry inner boat; a cable screwing linker is arranged at the tail of the boat body and can fix and seal the waterproof cable on the crust, while the waterproof cable is connected with the controller and leaking detecting sensor inside the crust. The present invention integrates the driving device, the control circuit and the pusher driving electrical motor crust as a whole and has temperature sensor, leaking detecting sensor and speed sensor and also has self diagnosing function and is provided with a pushing shaft, while the structure is compact, high efficient and safe.

Description

(1) Technical field [0001] The invention relates to a propeller applied to an underwater vehicle, in particular to an underwater propeller propeller with a self-diagnosing function. (2) Background technology [0002] Propeller propulsion is the most important propulsion method for underwater vehicles. Its propulsion principle is: the motor drives the propeller to rotate at high speed through the propeller drive shaft. While making the water flow, it is also subjected to the reverse force of the water. This reverse action The force pushes the underwater vehicle to make it sail. However, most of the traditional underwater propellers are open-loop drive control without speed feedback, and there are no performance detection devices such as temperature and water leakage detection. When faults such as overheating of the motor or thrust drop of the propeller occur, the propeller cannot perceive the complex situation inside itself, let alone judge the type of fault based on the abn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H21/17B63H21/21G05B13/02
Inventor 杨立平张铭钧王玉甲范大勇徐建安季东军
Owner HARBIN ENG UNIV
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