CN202772745U

CN202772745U - Large stator coil removing machine

Info

Publication number: CN202772745U
Application number: CN 201220440103
Authority: CN
Inventors: 杨坤; 梁鹏; 张旭鹏; 景强; 郭永安
Original assignee: Yongji Xinshisu Electric Equipment Co Ltd
Current assignee: CRRC Yongji Electric Co Ltd
Priority date: 2012-08-31
Filing date: 2012-08-31
Publication date: 2013-03-06
Anticipated expiration: 2022-08-31

Abstract

The utility model specifically discloses a large stator coil removing machine which can be used to solve problems of high labor intensity, high cost and easy motor core damage which exist in existing large stator coil removing processes. The large stator coil removing machine comprises a rack provided with corner wheels, a supporting rod is fixed on the upper end of the rack, a winch is fixed on the rack under the supporting rod, one end of the steel wire rope of the winch is connected with a wire clamping device, and a guide positioning wheel which is located on the upper side of the steel wire rope is arranged on the left side of the winch. The large stator coil removing machine of the utility model has a reasonable and reliable structural design, the silicon steel sheet in the core groove is prevented from being damaged by controlling the magnitude, direction and speed of the pulling force; and when the coil is pulled out, no tooth expansion phenomenon exists on the core, and the opening of the groove does not undergo deformation. Meanwhile, the labor intensity of workers is reduced, the working efficiency is improved, and advantages of simple structure, easy operation and low production cost are realized.

Description

The large-size stator unwinder

Technical field

The utility model relates to ripping device, is specially a kind of large-size stator unwinder.

Background technology

The iron-core coil assembling of major diameter motor, in when, problem of manufacturing qualities occuring must remove single or whole coil, because its wire gauge is large, wire is hard, groove depth unshakable in one's determination, flooded again special insulating varnish, and must guarantee after the coil dismounting that core slots is indeformable, it is large to remove by artificial means labour intensity.

After the coil nose of the stator assembling that needs are removed cuts off, the method of existing dismounting has following several: the one, drill rod is injected the turn-to-turn of single coil, with wooden mallet drill rod one end is axially impacted, when treating that drill rod is slowly pricked into about 60～80mm, lever up drill rod, pull out this section coil, then take out stitches by above-mentioned steps again, successively with whole coil complete removal; The 2nd, for the stator assembling of larger motor, in baking oven, bake and bank up with earth first 8h, after insulating varnish is softening, utilize the pulling force of workshop overhead traveling crane, catch hold of the head of single line circle (cutting off), it is pulled out from core slots; The 3rd, for the stator assembling of small electric machine, in baking oven, bake and bank up with earth first 8h, after insulating varnish is softening, utilize manual method directly from iron core, to pull out.

Adopt existing manual demolition method to have following shortcoming:

1, because size and the direction of pulling force can not effectively be controlled, inevitably can hinder part silicon steel sheet in the iron core slot (in flakes, groove distortion etc.), cause and repair the rear motor core loss and increase;

When 2, manual method was removed coil, labour intensity was large, and production efficiency is low;

3, take production cost (overhead traveling crane, baking oven etc.) height.

Summary of the invention

The utility model exists when existing large-size stator is taken out stitches in order to solve that labour intensity is large, cost is high and the problem of easy damaged electric machine iron core, and a kind of large-size stator unwinder is provided.

The utility model is to adopt following technical scheme to realize: the large-size stator unwinder, comprise the frame with horn ring, the frame upper end is fixed with support bar, be fixed with hoist engine on the frame of support bar below, steel wire rope one end of hoist engine is connected with tension disk, and the hoist engine left side is provided with the guide-localization wheel that is positioned at the steel wire rope upside.

The support bar leading section withstands on the iron-core coil assembling outer surface (front end has nylon structure to prevent top, surface unshakable in one's determination wound) of the major diameter motor that cuts off end winding, the winding wire length that the length of support bar is pulled out greater than need, to guarantee being that wirerope-winding is on roll barrel, so that the coil of pulling down takes out easily; What need the dismounting coil is subjected to force direction straight down, can prevent upper notch distortion unshakable in one's determination; The height of guide-localization wheel can guarantee before coil is thoroughly pulled out core slots that greater than bottom level unshakable in one's determination the direction of coil pulling force upwards prevents bottom unshakable in one's determination notch distortion; The effect of positioning guide pulleys is that the force direction that is subjected to that guarantees the disconnect process coil does not change about the winding on the roll barrel because of steel wire rope, prevention in the process that pulls to the damage of iron core (tooth rises, groove distortion etc.), make its pulling force remain straight with the iron core slot dolly, overcome and have when existing large-size stator is taken out stitches that labour intensity is large, cost is high and the problem of easy damaged electric machine iron core.

The utility model reasonable in design is reliable, pulls out size, direction and the speed of pulling force by control, stops silicon steel sheet injury in the iron core slot; And coil when pulling out iron core do not have that tooth rises, notch is indeformable; Reduce simultaneously labor strength, enhanced productivity, had simple in structure, easy to operate and cheap advantage.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Among the figure: 1-horn ring, 2-frame, 3-support bar, 4-hoist engine, 5-tension disk, 6-guide-localization wheel.

Embodiment

The large-size stator unwinder, comprise the frame 2 with horn ring 1, frame 2 upper ends are fixed with support bar 3, are fixed with hoist engine 4 on the frame 2 of support bar 3 belows, steel wire rope one end of hoist engine 4 is connected with tension disk 5, and hoist engine 4 left sides are provided with the guide-localization wheel 6 that is positioned at the steel wire rope upside.

In the specific implementation process, the power supply of hoist engine 4 is inverter supplies, so that coil is pulled out speed is adjustable, thereby changes coil when pulling out, and it is adjustable that different phase is pulled out speed; Tension disk 5 adopts eccentric wheel structures, and outer surface has annular knurl, and with increasing friction force, the size of pulling force is directly proportional with the power of stepping up of coil, and so that coil steps up and the process operation that takes out is simple; Above frame 2, be provided with protective plate, with in the protection backguy process because of various factors (wire clamp comes off, wire is broken etc.) when causing that pulling force loses suddenly steel wire rope and wire clamp fly out, guarantee operator's personal safety.

Operating process is as follows: the iron-core coil assembling outer surface that support bar 3 leading sections is leaned against the major diameter motor that cuts off end winding; Start the quick knob of counter-rotating, hoist engine 4 reverses, unclamp the steel wire rope that is wrapped on the hoist engine 4, treat that steel wire rope pulls out long enough (single coil length in groove) afterwards, quick knob stops to reverse, clamp the single-turn circular coil end with tension disk 5, start the forward slow button, hoist engine 4 carries out forward, by guide-localization wheel 6 with wirerope-winding on hoist engine 4, after treating that whole embedded coil is all pulled out, stop the forward slow button, hoist engine 4 forwards stop, unclamp tension disk 5, so far finish the backguy process one time, each coil repeats with regard to this course of work, removes the coil of whole iron-core coil fit on.

Claims

1. large-size stator unwinder, it is characterized in that: comprise the frame (2) with horn ring (1), frame (2) upper end is fixed with support bar (3), be fixed with hoist engine (4) on the frame (2) of support bar (3) below, steel wire rope one end of hoist engine (4) is connected with tension disk (5), and hoist engine (4) left side is provided with the guide-localization wheel (6) that is positioned at the steel wire rope upside.