A method for assembly process of large turbogenerator rotor slot wedge tightening
A turbogenerator and rotor slot wedge technology, which is applied in the manufacture of stator/rotor body, etc., can solve the problems of cumbersome operation, slot wedge looseness, and affecting the assembly quality of rotor slot wedges, and achieves easy assembly operations, accurate thickness values, The effect of shortening the production cycle
Active Publication Date: 2019-11-08
HARBIN ELECTRIC MASCH CO LTD
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Problems solved by technology
When the slot wedge is assembled, the rotor coil sinks down the slot wall and expands outside the slot under the influence of gravity, which affects the assembly quality of the rotor slot wedge and causes the slot wedge to loosen; after each slot wedge is assembled, the rotor needs to To rotate to the next slot assembly position, the hydraulic thrust cylinder needs to be pushed to the slot wedge assembly position on the slideway by hand, which is cumbersome to operate
Method used
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Embodiment Construction
[0018] The purpose of the present invention is to provide a large turbogenerator rotor slot wedge tight assembly process method. Technical scheme of the present invention is:
[0019] 1) Preparation before assembly of the rotor slot wedge 4: place the rotor on the electric roller frame, find the level, and fix the coil in the wire slot with temporary tools at four points;
[0020] 2) Installation of rotor slot wedge 4 assembly equipment: install four axial rolling guide rails 1 on the rotor body, install a rotary slide 2 and arc guide rail 3 on both sides of the two axial rolling guide rails 1, and a rotary slide 2 Hydraulic thrust cylinder 5 is installed on it;
[0021] 3) Adjust the assembly position of the rotor wedge 4: the rotor rotates so that the arc guide rail 3 is above the rotor horizontal line; the rotary slide 2 and the hydraulic thrust cylinder 5 are adjusted to the installation groove position of the rotor wedge 4;
[0022] 4) Assembling parts under rotor wedge...
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The invention relates to a tightly-punching assembly process of a large-size steam turbine generator rotor groove wedge. Axial rolling guide rails are arranged on a rotor body, a rotation sliding seatand an arc guide rail are arranged on the two axial rolling guide rails, a hydraulic push oil cylinder is arranged on the rotation sliding seat, the rotor groove wedge is arranged at an arbitrary position above a horizontal central line of a rotor, the defect of tightening insufficiency caused by settle-down of a rotor coil and external expansion of a downward slot in an original process of tightly punching the groove wedge at a horizontal position or the rotor is overcome, and the problems that the hydraulic push oil cylinder is pushed by manual, the rotor is rotated for many times and a tooth part of an installation groove is deformed are solved. The process has the advantages of reasonable design, time and labor saving and the like and is simple and convenient to operate, the assemblyquality of a product is ensured, and the cost performance of the product is improved.
Description
technical field [0001] The invention relates to a large-scale steam turbine generator rotor slot wedge tight assembly process method Background technique [0002] In the past, when large-scale turbogenerators used hydraulic equipment to assemble and tighten rotor slot wedges, the slot wedge assembly positions were all at the horizontal centerline of the rotor. When the slot wedge is assembled, the rotor coil sinks down the slot wall and expands outside the slot under the influence of gravity, which affects the assembly quality of the rotor slot wedge and causes the slot wedge to loosen; after each slot wedge is assembled, the rotor needs to To rotate to the next slot assembly position, the hydraulic thrust cylinder needs to be manually pushed to the slot wedge assembly position on the slideway, which is cumbersome to operate. With this new technology, the rotor slot wedge can be tightened tightly, and the slot wedge can be assembled at any position above the horizontal cent...
Claims
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IPC IPC(8): H02K15/02
CPCH02K15/02
Inventor 李冰丁旭东张晓龙贺云龙刘瑜许策张杨董伟夫
Owner HARBIN ELECTRIC MASCH CO LTD