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Process method for manufacturing impulse turbine runner by mechanical equipment

A technology of mechanical equipment and process methods, which is applied in the field of manufacturing impact turbine runners, can solve problems such as difficult performance guarantee, loss of hydropower stations, and large error of water bucket shape, so as to improve quality, liberate labor force, and reduce occupational health hazards. Effect

Active Publication Date: 2015-04-22
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, domestic power generation equipment manufacturers used integral casting and grinding, and the error of the water bucket line was large, and the performance was difficult to guarantee.
Due to manufacturing defects, broken buckets occur from time to time, causing huge losses to hydropower stations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] A process method for manufacturing an impact turbine runner by using mechanical equipment, characterized in that: the above method includes the following process steps:

[0024] (1) Lift the runner to the marking platform, and the professional marking personnel will draw the zero-degree line according to the drawing;

[0025] (2) Hang the runner with the zero-degree line drawn horizontally and clamp it on the special positioning mold, and then fix the runner and the mold with positioning pins;

[0026] (3) Hoist the runner and tire as a whole to the rotary platform of the mechanical equipment, and then remove all the hoisting tools;

[0027] (4) Adjust the runner and the rotary platform on the same center according to the inner circle of the runner, and at the same time, adjust the runner and the rotary platform to a parallel state, and the horizontal error is within 0.02mm / m;

[0028] (5) Four sets of pressing devices are placed around the special positioning mould, a...

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PUM

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Abstract

The invention relates to a process method for manufacturing an impulse turbine runner by mechanical equipment. The runner made by the mechanical equipment can meet performance index of water conservancy which is required by the design, and rotates uniformly when running. In particular, the fundamental allowance of the impulse turbine runner in manual polishing, which cannot be removed, can be removed completely in the process of mechanical machining, so that the stress of the runner can be released completely, and the situation that the root of runner is broken can not occur. At the same time, according to the process method, molded lines and dimensional tolerance of the runner can be ensured, the bunker break can be effectively prevented, and the service life of the runner can be prolonged.

Description

technical field [0001] The invention relates to a process method for manufacturing an impact water turbine runner by using mechanical equipment. Background technique [0002] In the past, domestic power generation equipment manufacturers used integral casting and grinding to form, and the error of the bucket shape line was large, and the performance was difficult to guarantee. Due to manufacturing defects, broken buckets occur from time to time, causing huge losses to hydropower stations. Contents of the invention [0003] The invention discloses a process method for manufacturing a runner of an impact water turbine by using mechanical equipment. This method can not only ensure the profile and size tolerance of the runner, ensure its hydraulic performance, but also effectively prevent the breakage of the bucket and extend the working life of the runner. service life. [0004] The technical proposal of the present invention is: a kind of technological method that adopts m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
Inventor 王波刘洪海徐磊徐雷
Owner HARBIN ELECTRIC MASCH CO LTD