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Supporting tool for guide vane nozzle in water-jet propulsion device and welding method

A welding method and water jet propulsion technology, which is applied in the field of welding processing, can solve problems such as unsatisfactory clamping effects, achieve strong versatility, ensure molding accuracy, and improve production efficiency

Active Publication Date: 2016-12-21
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of unsatisfactory clamping effect during the welding process of the guide vane nozzle, the embodiment of the present invention provides a support tooling and welding method for the guide vane nozzle in the water jet propulsion device

Method used

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  • Supporting tool for guide vane nozzle in water-jet propulsion device and welding method
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  • Supporting tool for guide vane nozzle in water-jet propulsion device and welding method

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0051] For a better understanding of the present invention, here is a brief introduction to the structure of the guide vane nozzle in the water jet propulsion device:

[0052] figure 1 It is a schematic diagram of the structure of the guide vane nozzle in the water jet propulsion device, figure 2 yes figure 1 A-direction view, image 3 yes figure 1 B-direction view; combined figure 1 , figure 2 and image 3 , the guide vane nozzle includes a casing 1, a large-end flange 2, a small-end flange 3, a hub 4 and a plurality of blades 5, and the large-end flange 2 and the small-end flange 3 are respectively welded on the axial direction of the casing 1. At both ends, the hub 4 is coaxially welded in the casing 1 , and a plurality of ...

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Abstract

The invention discloses a supporting tool for a guide vane nozzle in a water-jet propulsion device and a welding method and belongs to the technical field of welding processing. According to the welding method, the supporting tool can be placed in a housing; as a plurality of connecting screw rods are arranged on the outer circumference of an inserted-connected column in the supporting tool and are correspondingly in threaded connection with one ends of supporting rods respectively, and the other ends of the supporting rods are in threaded connection with regulation bolts, by rotating the supporting rods, the supporting rods can screw in and out relative to the corresponding connecting screw rods, and the distance of each supporting rod and the inserted-connected column is changed; during using, the regulation bolts at the other ends of the supporting rods can be arranged against the inner wall of the housing, thus in the welding process of the housing, the housing can be prevented from shrinking due to welding to cause welding deformation, and the forming accuracy of the guide vane nozzle is ensured; and in addition, the universality is strong, thus the welding method can be suitable for manufacturing housings with different inside diameters, and the production efficiency of the guide vane nozzle can also be correspondingly improved.

Description

technical field [0001] The invention relates to the field of welding processing technology, in particular to a support tool and welding method for a guide vane nozzle in a water jet propulsion device. Background technique [0002] The water jet propulsion device uses the main engine to drive the water pump, and the water pump ejects water from the stern at high speed, and uses the reaction force of the jet water to realize the propulsion of the ship. The water jet propulsion device includes guide vane nozzles. The main function of the guide vane nozzles is to collect the liquid thrown off by the impeller, and then evenly introduce it into the next stage or discharge it through the diffuser pipe. The guide vane nozzle can reduce the flow rate of the liquid, not easy to form dead angle and sudden diffusion, and realize the uniformity of the hull speed to improve the hydraulic performance of the ship. [0003] In the prior art, the guide vane nozzle in the water jet propulsion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K37/04
CPCB23K31/02B23K37/0435
Inventor 方松华霖董诚
Owner WUHAN MARINE MACHINERY PLANT
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