Water jet propelling device guide blade processing method

A technology of water jet propulsion and processing method, which is applied in the directions of propulsion components, ship propulsion, metal processing equipment, etc., can solve the problems of scrap guide vane 1, difficult to find the oil hole 25, affecting the efficiency of the jet pump, etc. Machining efficiency and machining accuracy, improvement of type value control ability, and the effect of improving machining efficiency

Inactive Publication Date: 2007-05-16
WUHAN MARINE MACHINERY PLANT
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  • Abstract
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AI Technical Summary

Problems solved by technology

This processing method is difficult to meet the requirements of the guide vane 2 blade shape and wall thickness from thick to thin smooth transition and guide vane 2 position accuracy
Since there are four oil cylinder ear seats 14 distributed outside the guide vane body 1, there is a relative positional relationship between the guide vane 2 and the outer wall surface 15 of the flow channel, the four oil cylinder ear seats 14, the inner wall surface 16 of the flow channel, and the cone bearing seat. , the shape and position of the guide vane 2 have a great influence on the operation of the guide vane body 1 to the propulsion device, and the deviation of the blade shape of the guide vane 2 wi

Method used

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  • Water jet propelling device guide blade processing method
  • Water jet propelling device guide blade processing method
  • Water jet propelling device guide blade processing method

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Experimental program
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Effect test

Embodiment

[0041] Embodiment: The processing method of guide vane body 1 comprises the following steps:

[0042] 1. Blank casting

[0043] The shapes of the guide vane body 1 and the guide vane 2 are shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 . If there is no margin on the surface of the guide vane 2 during casting of the guide vane body 1, it is not only difficult to ensure the line shape and indexing, but also prone to cracks; because the space between two adjacent guide vanes 2 is small, it is not conducive to the entire curved surface. For CNC machining, excessive placement of the margin will increase the difficulty of machining. In order to reduce the difficulty of processing and improve the yield of products, we put 2 to 3 mm margin on the suction surface 21 and pressure surface 22 of the guide vane 2 during casting, and at the same time, the water inlet edge 23 and the water outlet edge 24 are thinner and easier The processing part is processed according to the casting routine...

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Abstract

The invention relates to a method for processing the blades of injection propulsion unit, wherein it controls the process allowance of casting element, to improve the check and machine on each shaping surface of blade 2; it uses ultrasonic wave detector to detect the wall thickness of oil hole 25, improve the accuracy of curvature of blade 2 in double-phase stainless blade 1, and the control ability of blade 2; the processing accuracy of long lubricant hole of blade 2 is improved, to improve the process efficiency and accuracy of blades 1, 2. The invention's quality can reach international standard.

Description

Technical field [0001] The invention relates to a processing method for blade supporting elements or blades of a non-variable fluid propulsion device. Specifically, it is a processing method for a guide vane body of a water jet propulsion device. Background technique [0002] The water jet propulsion device is a new type of ship propeller. Its working method is to use the reaction force of the sprayed water flow of the mixed-flow propulsion pump to propel the ship forward, and realize the steering and reversing of the ship's course through the steering and reversing device. Compared with the propeller, it has many advantages such as strong anti-cavitation ability, small attachment resistance, low underwater noise, good protection performance, simple transmission mechanism, strong ability to adapt to variable working conditions and high ship maneuverability. It is used in many high-performance ships. began to be widely used. The guide vane body is an important part of the w...

Claims

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Application Information

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IPC IPC(8): B63H11/103B23Q27/00
Inventor 张之良赵治国王益知
Owner WUHAN MARINE MACHINERY PLANT
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