Water turbine runner positioning, assembling and welding method based on wedge-shaped auxiliary devices

A technology for auxiliary devices and water turbines, applied in auxiliary devices, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of assembly, poor positioning accuracy, reduce labor intensity, reduce production costs, etc., and achieve compensation for welding shrinkage, The effect of simplifying the assembly process and improving the accuracy of assembly and welding

Pending Publication Date: 2022-02-08
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the above-mentioned technical solutions, and to solve the manufacturing technology bottleneck problem caused by the poor assembly and positioning accuracy of the existing water pump turbine runner. Based on the two starting points of precise a

Method used

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  • Water turbine runner positioning, assembling and welding method based on wedge-shaped auxiliary devices
  • Water turbine runner positioning, assembling and welding method based on wedge-shaped auxiliary devices
  • Water turbine runner positioning, assembling and welding method based on wedge-shaped auxiliary devices

Examples

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Example Embodiment

[0045] Example 1

[0046] This example discloses a water turbine wheel positioning welding method based on a wedge-shaped auxiliary device 4, as a basic embodiment of the present invention, is a positioning welding welding of a rotator using a flip-oriented, including a member processing, and a wedge-shaped shape. Auxiliary device 4, component positioning and component assembly.

[0047] The components are processed: all constituent members of the rotary wheel are machined by the CNC machine tool, and all of the constituent members of the wheel, the constituent members include upper crown leaf disc 1, inner ring leaf disc 2, and outer loop 3; During the processing of each component, a plurality of mounted pin holes are machined on the upper crown blade disk 1, and the positioning pin is machined on the inner cycloid disc 2 and the outer loop 3, and the logo record or the steel print number is machined. Ways, the pin hole is corresponding to the positioning pin. That is, all the co...

Example Embodiment

[0059] Example 2

[0060] This example discloses a water turbine wheel positioning welding method based on a wedge-shaped auxiliary device 4, as a preferred embodiment of the present invention, a positioning welding welding of a rotator in a flip sequence, including a member processing, and a wedge-shaped assistant Device 4, component positioning, and component assembly.

[0061] Configuration: The components of the uniform machining benchmark are set by the CNC machine tool, and all of the constituent members of the wheel is machined, and the constituent members include upper crown leaf disc 1, inner cyclic tray 2, and outer loop 3; During the processing of the component, a plurality of mounted pin holes are machined on the upper crown blade disk 1, and the positioning pin is machined on the inner cycloid disk 2 and the outer loop disc 3, and by doing identifying the logo record or the steel print number, The pin hole corresponds to the positioning pin.

[0062] Installing the we...

Example Embodiment

[0073] Example 3

[0074] This example discloses a water turbine wheel positioning welding method based on a wedge-shaped auxiliary device 4, as a preferred embodiment of the present invention, a positioning welding welding of a rotator in a flip sequence, including a member processing, and a wedge-shaped assistant Device 4, component positioning, and component assembly.

[0075]The processing member: CNC machine tool by setting uniform machining datum, all the component members of the working wheel in working reference, including crown leaf disk 1, the inner ring 2 and the outer leaf disc leaf disk 3; in the machine during crown leaf discs 1, the processing step in the flow channel tube blisk by three-dimensional modeling and numerical control programming, the upper machining disk 1 leaf crown plurality of pin mounting holes and spaces for mounting the wedge in the flow channel aid boss structure 54; and according to layout requirement wedge support device 4, all the boss structu...

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Abstract

The invention relates to the technical field of water pump turbine runner sub-disc assembling and welding accurate positioning, in particular to a water turbine runner positioning, assembling and welding method based on wedge-shaped auxiliary devices. According to the present invention, a runner is positioned, assembled and welded by adopting an inverted assembly sequence, an upper crown blade disc, an inner ring blade disc and an outer ring blade disc are machined by setting a unified machining reference through a numerical control machine tool, and the wedge-shaped auxiliary devices are arranged in the circumferential direction of the upper crown blade disc at intervals and installed in a flow channel of the upper crown blade disc; the upper crown blade disc is adjusted to move upwards on an assembling platform to be aligned and fixed; and the inner ring blade disc and the outer ring blade disc are sequentially placed and adjusted to weld all the assembly components according to the structural requirement of a rotating wheel, and a welding flux is waited to be cooled. According to the technical scheme, on the basis of two starting points of accurately assembling the rotating wheel and shortening the assembly period, the labor intensity is reduced to a certain extent, the assembly period is shortened, and the production cost is reduced to a certain extent while the assembly accurate positioning and universality are guaranteed.

Description

technical field [0001] The invention relates to the technical field of precise positioning of a water pump and turbine runner by plate assembly and welding, in particular to a positioning and welding method for a water turbine runner based on a wedge-shaped auxiliary device. Background technique [0002] Pumped storage power plants play an important role in my country's power system. Its units use two working conditions: water pumps and turbines, and undertake functions such as peak shaving and valley filling, seasonal storage and other functions. The ultra-high head pump turbine has the characteristics of high head, high speed, large capacity, and complex operating conditions. Therefore, the deviation control of the installation and welding size of the pump turbine runner is extremely strict, especially the opening size of the runner, so as to ensure the stable and efficient operation of the unit. [0003] The traditional method of assembling and positioning the runners of...

Claims

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Application Information

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IPC IPC(8): B23K37/04
CPCB23K37/0443Y02E10/20
Inventor 乔杰陈道全吴家奎王大伦冯涛范潇胡章洪
Owner DONGFANG ELECTRIC MACHINERY
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