Technological method for assembling stator core of steam-turbine generator outside machine base
A technology of steam turbine generator and process method, which is applied in the direction of manufacturing stator/rotor body, etc., so as to improve the quality of groove shape and solve the problem of stacking
Inactive Publication Date: 2012-05-09
HARBIN ELECTRIC MASCH CO LTD
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[0003] The purpose of the present invention is to provide a new stacking process of the stator core of the steam turbine generator. The stator core is stacked outside the base to solve the stacking problem of the stator core when the punching sheet is positioned as a single positioning rib; at the same time, due to Stacking outside the machine base, the impact of the punching sheet is less affected by the chord distance and radius of the positioning ribs, which is more conducive to ensuring the quality of the groove shape. To realize the present invention, two key problems of stacking positioning and fixed hoisting must be solved. The purpose of the present invention is to Achieved by the following process methods:
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[0030] The process method for outer stacking of the stator core frame of the turbogenerator includes the following process steps:
[0031] (a) Outside the frame, stack the stator core segments on the stacking tool,
[0032] I. When stacking, place a fixed block for hoisting every other slot, and place it in a position that does not interfere with the inner circle positioning group.
[0033] II. When stacking, stack according to the order of one layer of ventilation slots and one section of iron core. The top is the iron core section.
[0034] III. After each core segment is stacked with 5mm ~ 7mm punched sheets, check the core groove shape and shape it.
[0035] IV. When the height of the lamination is enough to insert the groove-like rod, insert the groove-like rod into the groove and continue the lamination,
[0036] V. After punching and reshaping, measure the stacking height of the punching sheets at the inner and outer diameters of each sector, and control the height de...
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The invention provides a technological method for assembling a stator core of a steam-turbine generator outside a machine base. The stator core is assembled outside the machine base, a core segment is taken as a unit, and a plurality of core segments are assembled outside the machine base and are then hoisted in the machine base for superposition, so that the influence on the stator core, caused by positioning bars, is reduced, and the difficulty that the quality of the groove shape of the stator core which is positioned by single positioning bars cannot be ensured, cannot be solved by the traditional technology of manually assembling in the machine base, is solved. According to the method for assembling the stator core of the steam-turbine generator outside the machine base, the influence on a stamped sheet, caused by the string distance and the radius size of the positioning bars, is little during assembling, so that the problem of assembling the stator core when the stamped sheet is positioned by the single positioning bars is solved, and the quality of the groove shape of the stator core is improved.
Description
technical field [0001] The invention relates to a process method for outer stacking of a stator core base of a steam turbine generator. Background technique [0002] The traditional process of stacking the stator core of the turbogenerator is manual stacking in the machine base. The stator core is stacked using the traditional process. It is too narrow, the straightness of the groove shape is out of tolerance, and rework overlaps happen, especially when the punching sheet is positioned for a single positioning rib, and the traditional process is used for stacking, it is impossible to guarantee the quality of the groove shape of the stator core, and a new stacking method must be used. To solve the stacking problem of the stator core of the turbogenerator when the punching sheet is positioned as a single positioning rib, content of the invention [0003] The purpose of the present invention is to provide a new stacking process of the stator core of the steam turbine generat...
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Inventor 王巍刘继海秦志建王彦滨曹龙川李军王力强
Owner HARBIN ELECTRIC MASCH CO LTD