JPS58186910A - Magnetic attracting apparatus - Google Patents

Abstract

PURPOSE:To substantially eliminate residual magnetism in the case of demagnetization, by dividing a permanent magnet into two sections, arranging them between a pair of yokes keeping adequate spaces, and arranging individual magnetization and demagnetization coils to each of such permanent magnets or arranging magnetization/demagnetization coil to the desired one. CONSTITUTION:In case of attracting an object 13, when the magnetization and demagnetization coils 141, 142 respectively arranged at the circumference of permanent magnets 101, 102 are excited and magnetized, the line of magnetic force is generated between the poles 11, 12 and an object 13 as indicated by a solid arrow mark. Then, in case of demagnetizing an absorbed object 13, the magnetization/demagnetization coil 142 is reversely magnetized. Thereby, the line of magnetic force is reversely generated as indicated by the arrow mark of dotted line, forming a closed loop between the permanent magnets 101 and 102. As a result, supply of line of magnetic force to the internal and external pole surfaces 11' and 12' is suspended and the residual magnetism disappears. Accordingly, the attracted object 13 drops from the pole surfaces 11', 12'.

Description

[Detailed description of the invention] The present invention relates to a permanent magnet, its attachment and ma.

With a coil for t/''6@magnetic (b) path 1% in an air intermittent position, during demagnetization, the magnetic tube that occurs in the vicinity of the tube and the space tube can be easily erased. The following is a description of possible magnetic path configurations.

- Lifting magnets equipped with permanent magnets having layered wires and detachable coils are known as air suction devices, for example, and lifting magnets equipped with permanent magnets having layered wires and detachable coils are known. Attract the magnet and transfer it to the required place with the magnet. One thing that has been done is to move it for the sake of riding.

Now, this σ) kind of idiosyncratic jealousy is being promoted /fl
If you print it using the jt diagram, it will look like the IK/diagram Ky of the festival diagram.

In other words, in Figure #41, 10 is a horizontal shape or an elongated shape, 1 circular shape, etc. Elastic permanent stone Flat yokes (magnetic) /l and l made of a 5IIffi material such as 5Iffi are firmly fixed to form a parallel I pole of t%j, and these yokes //, / one end mr
t, each has a magnetic pole face 1 and 1 having a rectangular cross-section, etc., and when magnetized by the action of the yoke //, /J or permanent magnet IQ, these A magnetic circuit as shown by the actual listening arrow is generated at the connection with the *a body, the attracting pair Wl@IJ, which is placed opposite to versus#!
Satoshi/J is now being attracted. In addition, a layer i and a desulfurization coil 411 are arranged around the permanent magnet IO, and the direction of the current [over@
When an electric current is applied to the coil/da, the direction of magnetization of the coil rq due to this electric setting is set to the four directions or the opposite direction to the direction of the permanent magnet 10, and thereby the yoke//and the M1 of the saw are Poles, l/' and /ko'K.

Increase the generated force and create a strong attraction force against the object of attraction -1JK, or generate it at the connection with the magnetic (b) path training pair break 11J as indicated by the break arrow. , whereby the magnetic poles //' and l-' and the object of attraction /
By eliminating the circuit VM that connects Kjt with J at once, 1 substantially eliminating the suction at the connection between the two, and removing #I from the attracting proboscis i, y magnetic poles /', l'. It is.

However, in a lifting magnet having such a constitutive tube, the conditions for demagnetizing the yoke ii and the saw are as follows: -other m/i' and l co' and the attraction pair J
Between L Ji/J? ! Therefore, depending on the application of a constant flux of m% to the magnetizing/demagnetizing coil 741+, the residual energy will be multiplied, and its value will not be reduced, but it will be completely eliminated. The thing was Yumen. Now, this can be expressed as follows: the air left on the carpet, the resistance force H'lj on the horizontal axis, and the aI! j1, it becomes like the first order.

First, in the case of jk members, the *magnetizing/demagnetizing coil /, +1 becomes saturated at the operating point l due to the application of -*at, and the operation is completed. In this case, the noodle string gradient (#sakum) of tm-H, -/ is the inside and outside of the lifting magnet.

Does it depend on the space 11 between the attracting object/J?For simplicity, it is assumed that the space is constant, that is, the gradient is constant.Ifi applied upon completion of zero magnetization
*H, when the control is removed, the motion is parallel to the left when viewed from the stripe J, #cropping point JKII (.On the other hand, in the field of demagnetization,
S field (-Hq) in the negative direction so that the operating point is J
If you apply and remove the 龜楊朊, it will reach the ``0'' point in the @ section of the Liaojiao. In other words, ammo will disappear.

However, if you give an unbalanced negative Kinoba meeting like -Hl inside -H,'O, a residual magnetism like B/YaBl will live! The suction target iJ
o Smoothness of breakaway 1 lacks E. In addition, one magnetic pole face,
Ran's g between I-' and attraction target-13! , - changes from the actual one due to the intervention of the ^ object ↑ convex we, so the motion - becomes a plexus, and the overpressure magnetic field tw& due to the distance m
In order to achieve this, it is necessary to control iim or its striking time t, but in terms of K.

It is difficult to say 1% of the remaining weight.

The present invention provides a magnetic attraction device 1 having a permanent magnet and a coil 1 for attaching and demagnetizing the permanent magnet, which has a magnetic circuit that can substantially eliminate residual magnetism in the case of escape. Configuration 11 - Its purpose is to obtain.

In the present invention, in order to achieve this target sound, the Eikageki Kaikyo is divided into 1 pairs of 1-rings ([1), and these are placed at an appropriate distance of -1 between them. A separate magnetizing/demagnetizing coil is placed on each permanent magnet, or a layer-reed coil is placed on either one of them, and when the yoke attracts the object of attraction. In order to strengthen the magnetic force of the permanent magnets and magnetize them), when detaching the object to be attracted, one of the permanent magnet coils is reversed, and these permanent magnets are A closed circuit is formed between K and the remanence of the magnetic pole surface is substantially completely removed by K/ill.
This is so that the object to be sucked can be quickly and reliably removed from the amm.

Embodiment 1 of the present invention will be explained below based on the J diagram of the attached drawings showing Embodiment 1 on the tube of the present invention.

In the present invention, as shown in the figure 1, the permanent magnet I in the magnetic attraction device O#h shown in the 1st figure is
0 meetings, two permanent stones 101, divided into 10 degrees, between these meetings [placed parallel to each other].

A pair of opposing yokes 10. ,10. outside jllk
, Tsurezore, ms-Parental Coil/41. .

/+1. It is configured by li arrangement.

The present invention includes such a component tube.

Attraction target object/Jf For the sound to be attracted, a permanent magnet 10, .
10. When the magnetizing and m output coils are placed around the outer circumference of the
As shown by the arrow, it occurs between (a, etc.) and the suction target /J.Next, the suction target '
1! When the magnetizing/demagnetizing coil 16 is reversed wJi1, the magnetic force moves in the opposite direction to the former, as shown by the dotted arrow, and closes in relation to the permanent magnet IQ and 10. -# & [form. the result,
The supply of rut power to the inner and outer poles 1ii71' and 1' is cut off, and the leakage is lost, so the suction target proboscis t3
rlkli Koko II', /ko' will be the beginning of the story.

In addition, there is no permanent stone 10. The hat is reverse IIJ.

Even for static electric wires, pulse power supply can be used to control the electric tit value during use and time control of current.
It becomes completely unnecessary.

Furthermore, in this embodiment, the magnetizing/parental coil' ”
t s ' ” t k *Respectively, permanent magnet 10.

10, and the coil /@, , /
For II and I, either one of the permanent magnets may be set at an angle of 10°.

Does the present invention have the above-described configuration and operation?
Now, here is one feature of the present invention: [When compared with a conventional device, it is as follows:

As described above, in a magnetic attraction device that has a single magnet a#i, a conventional O permanent magnet, magnetization that has been magnetized nine times, and aam*il i, the Il pole ■ and its vicinity including the air barrier Since the residual magnetism generated in the magnetic field can be essentially completely eliminated, it would be a waste of time to provide a device that eliminates the various problems encountered in conventional devices. Also,
The device of the present invention is suitable as a lifting magnet for the ferromagnetic material lifting magnet described as an example above.
It can also be effectively used as a magnet device for opening and closing doors.

[Brief explanation of the drawing]

The diagram shows an example of a conventional magnetic attraction device, and the diagram shows an embodiment of the device of the present invention. FIG. /0i10,゜・゜Permanent magnet; ii, tco...1 others (
a-p); tl', t J' -・- @other mountain; i
J- Attraction target; /$, , 1+, ... Magnetization/m-coil.

Claims (1)

[Scope of Claims] l One bar-shaped permanent magnet is placed in the horizontal direction KV parallel to an arbitrary MK, and each of them is 1m long. A fly suction device having a tubular bone image, which is made up of a coil 1r for magnetization and m-, which are strongly connected to each other, and are wound around one or both of the external chests of each permanent magnet. 1. A pneumatic suction device having a shape and dimensions of one permanent magnet.