CN106936276B

CN106936276B - Vacuum paint dipping basket for generator rotor

Info

Publication number: CN106936276B
Application number: CN201710197724.3A
Authority: CN
Inventors: 林朝文
Original assignee: Fujian Everstrong Lega Power Equipments Co Ltd
Current assignee: Fujian Everstrong Lega Power Equipments Co Ltd
Priority date: 2017-03-29
Filing date: 2017-03-29
Publication date: 2023-06-27
Anticipated expiration: 2037-03-29
Also published as: CN106936276A

Abstract

The invention provides a vacuum paint dipping basket for a generator rotor, which comprises a bottom frame, a fence and a plurality of lifting lugs; the bottom frame comprises a plurality of lower frames, a plurality of cross beams and a plurality of longitudinal beams, and the plurality of lower frames are connected end to form a closed space; the cross beams are arranged in the closed space in parallel at intervals, and the end part of each cross beam is welded with the inner side surface of the lower frame; the plurality of longitudinal beams are parallel and welded at intervals on the top end of the closed space, the plurality of longitudinal beams and the plurality of cross beams are vertically and alternately welded to form a plurality of opening parts, when the rotor is in a working state, the bottom of the rotor is inserted into one opening part, and the lower end face of the iron core of the rotor is clamped on the upper surfaces of the two corresponding longitudinal beams; the fence is vertically arranged on the bottom frame, and the plurality of lifting lugs are arranged on the outer side face of the fence at intervals. The invention has the advantages of simple structure, convenient operation, vertical rotor soaking and drying, stable and reliable quality, neat and compact rotor arrangement and high production efficiency.

Description

Vacuum paint dipping basket for generator rotor

Technical Field

The invention relates to a vacuum paint dipping basket for a generator rotor.

Background

The generator rotor mainly comprises an iron core, a shaft, a coil rack and the like, and adopts a vacuum paint dipping insulation treatment process, so that the generator rotor has the advantages of improving the penetration capacity of the insulating paint and increasing the filling rate, thereby improving the overall mechanical strength, the insulation strength, the dampproof, the mildew-proof and the like of the coil, and the application of the vacuum paint dipping process is approved and popularized by people.

The rotor is a main part of the generator, and is in a high-speed running state in operation, if the rotor is laid down for paint dipping, insulating paint is deposited on one side of the rotor after drying, unbalance of the rotor is caused, and vibration is generated in running.

Disclosure of Invention

The invention aims to solve the technical problem of providing a vacuum paint dipping basket for a generator rotor.

The invention is realized in the following way: a vacuum paint dipping basket for a generator rotor comprises a bottom frame, a fence and a plurality of lifting lugs; the bottom frame comprises a plurality of lower frames, a plurality of cross beams and a plurality of longitudinal beams, and the plurality of lower frames are connected end to form a closed space; the cross beams are arranged in the closed space in parallel at intervals, and the end part of each cross beam is welded with the inner side surface of the lower frame; the plurality of longitudinal beams are parallel and welded at intervals on the top end of the closed space, the plurality of longitudinal beams and the plurality of cross beams are vertically and alternately welded to form a plurality of opening parts, when the rotor is in a working state, the bottom of the rotor is inserted into one opening part, and the lower end face of the iron core of the rotor is clamped on the upper surfaces of the two corresponding longitudinal beams; the fence is vertically arranged on the bottom frame, and the plurality of lifting lugs are arranged on the outer side face of the fence at intervals.

Preferably, the bottom frame and the fence are both in regular hexagon structures, the lower frame is a channel steel, the cross beam is flat steel, and the longitudinal beam is square steel.

Preferably, the fence comprises a plurality of side fences connected end to end, each side fence comprises an upper frame and a railing, and gaps are reserved between the railing and the upper frame and between the railing and the lower frame.

Preferably, the lowest end of the rotor is higher than the bottom surface of the lower frame, and the top end of the rotor is lower than the top surface of the upper frame.

Preferably, the lifting lug is of a V-shaped structure, two feet of the lifting lug are welded on the side rail and the lower frame, and the part, higher than the side rail, of the lifting lug is arranged in an outward inclined mode.

Preferably, the horizontal projection view of the upper portion of the lifting lug is located in the circumcircle of the bottom frame.

The invention has the advantages that: the vertical type rotor soaking and drying device is simple in structure, convenient to operate, stable and reliable in quality, neat and compact in rotor arrangement and capable of improving production efficiency.

Drawings

The invention will be further described with reference to examples of embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic view of the structure of the vacuum paint dipping basket of the generator rotor of the present invention.

Fig. 2 is a schematic view of a rotor structure according to the present invention.

Fig. 3 is a view showing a state of use of the vacuum paint dipping basket for the generator rotor according to the present invention.

Detailed Description

Referring to fig. 1-3, a vacuum paint dipping basket 100 for a generator rotor comprises a bottom frame 1, a fence 2 and a plurality of lifting lugs 3; the bottom frame 1 comprises a plurality of lower frames 11, a plurality of cross beams 12 and a plurality of longitudinal beams 13, and the plurality of lower frames 11 are connected end to form a closed space M; the crossbeam 12 is parallel and the interval arrange in the closed space M, and the tip of every crossbeam 12 all with the medial surface welding of lower frame 11, underframe 1 and rail 2 all are regular hexagon structure, lower frame 11 is the channel-section steel, crossbeam 12 is the band steel, longeron 13 is the square steel, so set up, can improve the bearing capacity of paint dipping basket 100, reduce the area paint surface, increase the steam circulation space. The longitudinal beams 13 are parallel and welded at intervals to the top end of the closed space M, the longitudinal beams 13 and the cross beams 12 are vertically welded in a staggered manner to form a plurality of openings N, when the rotor 200 is in a working state, the bottom of the rotor 200 is inserted into one opening N, the lower end surface 211 of the iron core 201 of the rotor 200 is clamped on the upper surfaces of the two corresponding longitudinal beams 13, so that the rotor 200 is stably placed, and the contact surface is small, the arrangement is tidy and compact, and the space utilization is high. The lowest end of the rotor 200 is higher than the bottom surface of the lower frame 11, the top end of the rotor 200 is lower than the top surface of the upper frame 211, that is, the distance D from the top surface of the longitudinal beam 13 to the bottom surface of the bottom frame 1 is greater than the distance h2 from the lower end surface 221 of the rotating shaft 202 of the rotor 200 to the lower end surface 211 of the iron core 201, and the distance C from the top surface of the longitudinal beam 13 to the top surface of the upper frame 211 is greater than the distance h1 from the upper end surface 222 of the rotating shaft 202 to the lower end surface 211 of the iron core 201. The fence 2 is vertically arranged on the bottom frame 1, and the plurality of lifting lugs 3 are arranged on the outer side face of the fence 2 at intervals.

Referring to fig. 1 again, the rail 2 includes a plurality of side rails 21 connected end to end, each side rail 21 includes an upper frame 211 and a rail rod 212, and gaps are formed between the rail rod 212 and the upper frame 211 and between the rail rod 212 and the lower frame 11, so that the paint deposition surface can be reduced, and the hot air circulation space can be increased. The lifting lug 3 is in a V-shaped structure, two feet of the lifting lug 3 are welded on the side rail 21 and the lower frame 11 (strength of the upper frame 211 is improved), and the part of the lifting lug 3 higher than the side rail 21 is arranged in an outward inclined mode; the horizontal projection view of the upper portion of the lifting lug 3 is located in the circumscribed circle of the bottom frame 1, that is, the lifting lug 3 is higher than the top surface of the upper frame 211 and is inclined outwards, but does not exceed the circumscribed circle of the regular hexagonal bottom frame 1, so that the upper and lower alignment positioning is facilitated when multi-basket overlapping paint dipping and drying are performed.

Referring to fig. 3 again, when the present invention is applied, the following steps are performed:

(1) The lower end surfaces 211 of the cores 201 of the rotor 200 are placed on the adjacent two side members 13, and the left and right cut surfaces 231 of the lower end frame 203 of the rotor 200 are inserted into the opening N between the two side members 13.

(2) The paint dipping baskets 100 with the rotors 200 are hung into the cylinder one by using a crane, the cylinder cover is covered and locked, and then the rotors 200 in the cylinder are subjected to vacuum dipping and drying treatment according to the technical operation rules.

The invention has the advantages of simple structure, convenient operation, vertical soaking and baking of the rotor 200, stable and reliable quality, orderly and compact arrangement of the rotor 200, full utilization of the space in the cylinder, improvement of production efficiency and the like. The invention can lead the rotor 200 to adopt vertical paint dipping and drying, and the insulating paint is axially deposited at one end of the rotor after drying, thereby avoiding the defect that the rotor 200 is unbalanced due to paint dipping and drying and generates vibration during operation.

Claims

1. The utility model provides a generator rotor vacuum paint dipping basket which characterized in that: comprises a bottom frame, a fence and a plurality of lifting lugs; the bottom frame comprises a plurality of lower frames, a plurality of cross beams and a plurality of longitudinal beams, and the plurality of lower frames are connected end to form a closed space; the cross beams are arranged in the closed space in parallel at intervals, and the end part of each cross beam is welded with the inner side surface of the lower frame; the plurality of longitudinal beams are parallel and welded at intervals on the top end of the closed space, the plurality of longitudinal beams and the plurality of cross beams are vertically and alternately welded to form a plurality of opening parts, when the rotor is in a working state, the bottom of the rotor is inserted into one opening part, and the lower end face of the iron core of the rotor is clamped on the upper surfaces of the two corresponding longitudinal beams; the fence is vertically arranged on the bottom frame, and the plurality of lifting lugs are arranged on the outer side surface of the fence at intervals;

the bottom frame and the rail are of regular hexagon structures, the lower frame is channel steel, the cross beam is flat steel, and the longitudinal beam is square steel;

the lowest end of the rotor is higher than the bottom surface of the lower frame, and the top end of the rotor is lower than the top surface of the upper frame; the lifting lug is of a V-shaped structure, two feet of the lifting lug are welded on the side rail and the lower frame, and the part of the lifting lug, which is higher than the side rail, is arranged in an outward inclined manner; the horizontal projection view of the upper part of the lifting lug is positioned in the circumcircle of the bottom frame;

the fence comprises a plurality of side fences connected end to end, each side fence comprises an upper frame and a railing, and gaps are reserved between the railing and the upper frame and between the railing and the lower frame.