CN2651220Y

CN2651220Y - High-temperature hoisting electromagnet by coil autofining surface radiation

Info

Publication number: CN2651220Y
Application number: CN 200320104860
Authority: CN
Inventors: 陈志农; 潘大鸿
Original assignee: XINGGUANG ELECTROMAGNET FACTORY DALIAN
Current assignee: XINGGUANG ELECTROMAGNET FACTORY DALIAN
Priority date: 2003-10-11
Filing date: 2003-10-11
Publication date: 2004-10-27
Anticipated expiration: 2013-10-11

Abstract

A high temperature lifting electromagnet using the coil surface to radiate is provided, which comprises an upper yoke plate, an outer cover, a coil, a coil bottom guard board and a core pole. Wherein, the coil, the upper yoke plate, the outer cover, the core pole and the coil bottom guard board are separated by a heat insulation cushion block, which makes the surrounding of the coil form airspace; both ends of the electromagnet outer cover are installed with a ventilating hood which connects the outside and the airspace. The coil bottom guard board is suited on the core pole to brace the coil and is hung on the upper yoke plate via a screw. The heat produced during the work of the coil cools all the surfaces of the coil with the help of the natural wind flowing in the ventilating hood on both ends of the electromagnet, therefore, the utility model not only improves the service performance of the electromagnet, but also greatly prolongs the service life of the electromagnet. In addition, the utility model has simple process and reliable running and can effectively reduce the cost and improve the working efficiency.

Description

A kind of high temperature lifting electromagnet that utilizes coil self surface radiating

Technical field the utility model relates to a kind of high temperature lifting electromagnet that utilizes coil self surface radiating, is particularly useful for the electromagnet that iron and steel enterprise's handling surpasses 680 ℃ high-temperature material.

The equipment of coil heating when the background technology electromagnet is worked as one, its coil heat dissipation problem is electromagnet stable operation and the key that guarantees service life.Down, its ambient radiation temperature can reach more than 300 ℃ the high temperature lifting electromagnet in working order, and at this moment, the case surface of electromagnet not only can't be distributed the heat that coil produces, and can make the outside heat influence impel coil temperature to raise on the contrary if deal with improperly.Will lower the work efficiency and the service life of electromagnet like this.In the prior art, the constructional feature of high temperature lifting electromagnet is still as the normal temperature electromagnet, the surface of shell of electromagnet is considered as heat-delivery surface, therefore, way is to fill up filler between coil and housing, use fixed coil and the heat that coil produces is transmitted to housing again by filler and distribute, simultaneously the conduction heat and the width of cloth of electromagnet bottom driving surface are penetrated heat in order to reduce high-temperature material, also will be between the end of electromagnet backplate and coil certain thickness heat-insulating asbestos or the alumina silicate fibre of being used for of cushioning.Also electromagnet must be made all-sealed structure for protection against the tide simultaneously.

Summary of the invention dominant ideas of the present utility model are the enclosure interior of the coil of high temperature lifting electromagnet " suspension " at electromagnet, allow coil self surface as heat delivery surface, and reducing electromagnet casing institute absorbed heat to greatest extent influences coil.By natural wind, the temperature of coil is descended again, thereby avoid coil to cause electromagnet suction to descend because of temperature rise is too high, even cause the problem of coil burnout.Simultaneously, service life of extension coil greatly.

The technical scheme that its technical matters that solves the utility model adopts is: this high temperature lifting electromagnet that utilizes coil self surface radiating, comprise yoke plate, shell, coil, coil base backplate, the core utmost point, to be separated by with heat-insulating cushion block respectively between coil and last yoke plate, shell, the core utmost point, the coil base backplate, also be separated by between coil cake and the cake with heat-insulating cushion block, form an airspace around making coil, the extraneous ventilating hood that links to each other with described airspace is equipped with at the electromagnet casing two ends.The coil base backplate is enclosed within core and extremely goes up, and coil is held up, and be lifted on the yoke plate by screw rod.

Advantage of the present utility model is: when high temperature lifting electromagnet handling high temperature steel, can prevent the influence of high temperature effectively to coil, because coil is " exposing ", promptly not having betal can is packaged in the housing, the natural wind that the heat that produces during coil working flows by the ventilating hood by the electromagnet both sides is cooled off the surfaces externally and internally up and down of coil, has guaranteed that magnet coil can be not too high because of temperature rise, and suction descends and can't normal operation, even cause material to fall, have an accident.Like this, not only improve the in-use performance of electromagnet, and prolonged the service life of electromagnet greatly.Cancelled traditional insulating packing that is filled between coil and the housing, at work-site by disassembled simply to fastening screw, just can be easily emat coil more, and the magnet coil of conventional confguration can only return originating firm and could change or repair.In addition the utility model technology simple, reliable, effectively cost-cutting, increase work efficiency.

Description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 is that scheme drawing is partly cutd open in the side-looking of Fig. 1.

The specific embodiment now is further described the utility model in conjunction with the accompanying drawings, with reference to Fig. 1 Fig. 2, shell 1 top is provided with yoke plate 2, coil 5 is enclosed within on the core utmost point 7, coil base backplate 9 is firm at electromagnetism iron-clad internal fixation with coil by screw rod 3 that passes yoke plate and clamp nut 4, between coil cake and the cake, between the coil and the core utmost point, between coil and the last yoke plate, be respectively equipped with the cushion block 10 that forms airspace between coil and the end backplate, the two ends of electromagnet casing are provided with the ventilating hood 11 that the external world is linked to each other with described airspace, be provided with the utmost point palm 8 below extremely at core, heat insulation backplate 6 is located under the coil base backplate.

Claims

1. high temperature lifting electromagnet that utilizes coil self surface radiating, comprise yoke plate, shell, coil, coil base backplate, the core utmost point, it is characterized in that: will be separated by with heat-insulating cushion block respectively between coil and last yoke plate, shell, the core utmost point, the coil base backplate, also be separated by between coil cake and the cake with heat-insulating cushion block, form an airspace around making coil, the ventilating hood that the external world is linked to each other with described airspace is equipped with at the electromagnet casing two ends.

2. electromagnet according to claim 1 is characterized in that; Described coil base backplate is enclosed within core and extremely goes up, and coil is held up, and be lifted on the yoke plate by screw rod.