CN2079794U - Frame type high efficient demagnetising apparatus - Google Patents

Abstract

The utility model discloses a frame type high efficient demagnetizer. The shell body of a shell (2) is made of non-ferrous metal boards, the shell body above a base (4) and vertical the winding direction of a coil (1) are the unclosed entirety, an inner frame is made of insulating bakelite boards, the winding wire of the coil (1) winds at intervals, and a ventilation hole is arranged on the inner surface of a wire guide frame (7). The number of the windings of the coil can be reduced 50%, the temperature of the coil can also be reduced, the power of demagnetizing can be enlarged, a forced cooling device is relieved, the magnetic shielding phenomenon is eliminated, and the demagnetizing effect is good. The utility model is a new-type high efficiency demagnetizing device used for eliminating the remanence in machining.

Description

Frame type high efficient demagnetising apparatus

The utility model belongs to the isolated plant of eliminating workpiece remanent magnetism in the machining equipment.

Eliminate the frame demagnetizer that workpiece remanent magnetism is adopted in the machining at present, shell is integrally closed metal structure, and coil is little electric current multiturn number form formula.Though effective in actual applications, exist demagnetization power limited, the shortcoming that the scope of application is little if add the high-power big problem of coil heating amount of then can bringing, needs to force cooling provision with oil cooling, air-cooled etc., and volume strengthens, and uses inconvenient.

It is big that the purpose of this utility model provides a kind of demagnetization power, need not increase the pressure cooling infrastructure, and efficient demagnetizer applied widely satisfies the needs of eliminating workpiece remanent magnetism in the machining.

Task of the present utility model is finished like this: improved on existing frame demagnetizer basis, design the efficient demagnetizer of a kind of novel frame, grade and form by shell (2), inside casing (3), coil (1), base (4), electrical control division, the housing of shell (2) adopts non-ferrous metal board to make, and the above housing of base (4) is inc integral body on perpendicular to coil (1) coiling direction; Inside casing (3) is made by the insulating cement plank, has venthole on inner top surface; The coiling of coil (1) be at interval row around, the inner face of coil holder (7) has ventilation hole.Also the part of housing more than base (4) of shell (2) can be had the perforation slit perpendicular to coil (1) coiling direction, and keep off-state, housing is equivalent to inc single-turn circular coil.The most handy aluminium sheet of non-ferrous metal board that the housing of shell (2) adopts.The inside casing that the insulating cement plank is made (3) can be eliminated the magnetic screen phenomenon effectively, and the venthole of end face helps heat radiation with dustproof.

According to above-mentioned design and improvement, the number of turn of the utility model coil can reduce 50%, and heating loss's electric current obviously descends, and coil temperature reduces, demagnetization power strengthens, exempt the pressure cooling infrastructure, reduced volume, eliminated the magnetic screen phenomenon, demagnetizing field in the workpiece body is strengthened, demagnetization effectiveness is good, and is applied widely, realized giving fixed target preferably.

Below accompanying drawing is illustrated:

Fig. 1 is the utility model overall schematic;

Fig. 2 is coil among Fig. 1 (a 1) structural representation.

Among the figure, (1)--coil, (2)--shell, (3)--inside casing, (4)--base, (5)--castor, (6)--control apparatus; (7)--coil holder, (8)--pad line plate, (9)--electromagnetic wire, (10)--bolt.

The utility model is described in further detail by embodiment at last: adopt glass epoxide insulating cement plank to make coil holder (7) and inside casing (3), with screw and the fixing shaping of adhesive; Go up interval row around insulation electromagnetic wire (9) at coil holder (7), and prop copper cash with insulation bar pad line plate (8).Shell (2) is made with aluminium sheet, aluminium sheet is disconnected with upper top at base, fills insulating resin in disconnecting the slit, and the side is fixed with insulation board.Then coil (1) and shell (2) are fixed on the base (4), in base (4), install control apparatus (6), the desuperheat head is affixed on the copper cash in the coil (1), and coil (1) is connected on the A.C. contactor in the control apparatus (6), and complete machine is promptly accused and finished.Electric control system is identical with existing frame demagnetizer, adopts time relay control demagnetization, demagnetizes during the frame mouth of workpiece by inside casing (3), cuts off the power supply during no workpiece.By work in average 3 minutes once.Calculated in each 6 seconds, than the existing demagnetizer saves energy 90% of switching on for a long time, the workpiece demagnetization effectiveness is good.

Claims (3)

1, a kind of frame demagnetizer, grade and form by shell (2), inside casing (3), coil (1) base (4), electrical control division, the housing that it is characterized in that shell (2) adopts non-ferrous metal board to make, the above housing of base (4) with perpendicular to being inc integral body on coil (1) the coiling direction; Inside casing (3) is made by the insulating cement plank, has venthole on inner top surface; The coiling of coil (1) has ventilation hole for row at interval around the inner face of, coil holder (7).

2, according to the described frame demagnetizer of claim 1, the part of housing more than base (4) that it is characterized in that said shell (2) has the perforation slit perpendicular to coil (1) coiling direction, and keeps off-state.

3,, it is characterized in that the non-ferrous metal board of the housing employing of said shell (2) is an aluminium sheet according to the described frame demagnetizer of claim 1.

Images