CN101764474A - Method for filling adjustment sheet in pole core of generator rotor of hydroelectric generating set - Google Patents

Abstract

The invention relates to a method for filling adjustment sheets in the pole core of the generator rotor of a hydroelectric generating set, belonging to the technical field of generators. The method for filling the adjustment sheets in the pole core of the generator rotor of the hydroelectric generating set is characterized in that pole laminations are tightly pressed before the pole core is penetrated through a tie bolt, the pole core is penetrated through the tie bolt after the adjustment sheets are filled, and finally the pole core is tightly pressed and assembled. The invention has the advantages that the requirements on the assembling and the pressing of the pole core of the rotor of large and medium hydroelectric generating sets, the tightness and the flatness of the pole core are high, the assembling quality of the pole core of the large and medium hydroelectric generating sets is ensured and the production efficiency is improved.

Description

A kind of method of filling adjustment sheet in pole core of generator rotor of hydroelectric generating set

Technical field

The invention belongs to technical field of generators, particularly relate to a kind of method of filling adjustment sheet in pole core of generator rotor of hydroelectric generating set.

Background technology

At present, big-and-middle-sized Hydropower Unit rotor magnetic pole iron core is along with capacity increases, length constantly extends, because the pole lamination thickness of closed assembly pole core has error, general 1.5-3mm light sheet material tolerance is more than 0.04mm, big-and-middle-sized Hydropower Unit rotor magnetic pole iron core is to be overlapped together to thousands of by hundreds of, and accumulated error reaches several millimeters; The generation of the burr of punching out simultaneously also makes gauge inhomogeneous.This situation often makes that dimensional tolerance and form and position tolerance do not reach quality requirement behind the pole core press mounting, also make simultaneously whole iron core produce flexural deformation, influence the stable operation of complete machine, traditional handicraft is because employing penetrates the stretching screw lamination, because of filling the gap, it is qualified that quality can not guarantee.

Summary of the invention

The present invention provides a kind of method of filling adjustment sheet in pole core of generator rotor of hydroelectric generating set for solving the problem that prior art exists.

The object of the invention provides that a kind of method is simple, rotor magnetic pole iron core tightness, glacing flatness, integral rigidity are good, the method that flexural deformation is little, efficient high energy reaches the filling adjustment sheet in pole core of generator rotor of hydroelectric generating set of characteristics such as water power product quality regulation of classification.

The method of filling adjustment sheet in pole core of generator rotor of hydroelectric generating set of the present invention adopts following technical scheme:

A kind of method of filling adjustment sheet in pole core of generator rotor of hydroelectric generating set fills trimmer with pole core, it is characterized in that: filling adjustment sheet may further comprise the steps,

1) pole lamination is come on the rack compresses;

2) measure the gap that each position of pole core exists under normal pressure;

3) make the satisfied trimmer that fills up the gap;

4) opsition dependent adds the trimmer filling, penetrates the laggard luggage pressure of stretching screw and finishes.

The method of filling adjustment sheet in pole core of generator rotor of hydroelectric generating set of the present invention can also be taked following technical measures:

The method of described filling adjustment sheet in pole core of generator rotor of hydroelectric generating set is characterized in: measuring the gap that exists between the pole core sheet under the pole core impaction state, in pole shoe, pole body or T tail bit measurement clearance exact value.

The method of described filling adjustment sheet in pole core of generator rotor of hydroelectric generating set is characterized in: make and satisfy the trimmer that fills up the gap, according to gap width processing trimmer shape.

Advantage that the present invention has and good effect:

The present invention adopts increase pole core different parts trimmer to eliminate and adorns the gap of pressing the back pole core owing to adopt above-mentioned brand-new technology scheme; And pole core tightness and integral rigidity have been guaranteed, more scientifically satisfied the specification requirement of rotor portion, deficiencies such as it is not enough to have eliminated traditional handicraft rotor magnetic pole iron core tightness, and glacing flatness is overproof, integral rigidity is low, flexural deformation is big, efficient is low have improved the quality and the production efficiency of product.

Description of drawings

Fig. 1 is a pole core structural representation behind the filling adjustment sheet of the present invention;

Fig. 2 is a local structure for amplifying schematic diagram among Fig. 1;

Fig. 3 measures pole core gap approaches schematic diagram;

Fig. 4 is left TV structure schematic diagram;

Fig. 5 is a pole shoe trimmer structural representation;

Fig. 6 is the left TV structure schematic diagram of Fig. 5;

Fig. 7 is a T tail trimmer structural representation;

Fig. 8, Fig. 9 are pole body trimmer structural representations.

Among the figure, 1-pole lamination, 2-trimmer, 3-pole end-plate, 4-clearance gauge, 5-T tail trimmer, 6-pole body trimmer, 7-pole body trimmer.

Embodiment

For further understanding technology contents of the present invention, characteristics and effect, enumerate following example now, and be described with reference to the accompanying drawings as follows:

See also accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9.

Embodiment 1

A kind of method of filling adjustment sheet in pole core of generator rotor of hydroelectric generating set fills trimmer 2 with pole core, may further comprise the steps:

1) pole lamination 1 is come on the rack compresses;

2) measure the gap that each position of pole core in the pole end-plate 3 exists with clearance gauge 4 under normal pressure; In pole shoe, pole body or T tail bit measurement clearance exact value.

3) make the satisfied trimmer that fills up the gap; Comprise pole shoe trimmer, T tail trimmer 5, pole body trimmer 6 and pole body trimmer 7.According to gap width processing trimmer shape.

Present embodiment is measured the different parts gap under the pole core parallel pressure.Two ends put on the pole core two ends for the regulation parallel pressure among the figure, make pole sheet pressure meet the drawing requirement.

4) opsition dependent adds the trimmer filling, and with the spot welding of adjacent standard pole lamination, penetrates the laggard luggage pressure of stretching screw and finish.

The specific process of present embodiment:

1), and compresses earlier with on pole lamination and the pole end-plate rack.Under the regulation parallel pressure, use cutter chi and clearance gauge, carry out record from 4 orientation measurement pole core gaps.

2) according to measurement result gap width is divided equally, general every place should fill out gap width and be not more than 1/2 punching thickness, divides equally along pole core length.

3) according to local trimmers of difformity such as measure error processing pole body, pole shoe, T tails, every kind of trimmer must exist 1/2 stretching screw hole or damping cylindrical void, to guarantee the pole core globality.

4) penetrate magnetic pole stretching screw and amortisseur bar and change dress pressure operation over to.

Claims (3)

1. the method for a filling adjustment sheet in pole core of generator rotor of hydroelectric generating set fills trimmer with pole core, it is characterized in that: filling adjustment sheet may further comprise the steps,

1) pole lamination is come on the rack compresses;

2) measure the gap that each position of pole core exists under normal pressure;

3) make the satisfied trimmer that fills up the gap;

4) opsition dependent adds the trimmer filling, penetrates the laggard luggage pressure of stretching screw and finishes.

2. the method for filling adjustment sheet in pole core of generator rotor of hydroelectric generating set according to claim 1 is characterized in that: measuring the gap that exists between the pole core sheet under the pole core impaction state, in pole shoe, pole body or T tail bit measurement clearance exact value.

3. the method for filling adjustment sheet in pole core of generator rotor of hydroelectric generating set according to claim 1 is characterized in that: make and satisfy the trimmer that fills up the gap, according to gap width processing trimmer shape.

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