CN2101320U

CN2101320U - Matrix type permanent magnetic sucking disc

Info

Publication number: CN2101320U
Application number: CN 91204287
Authority: CN
Inventors: 张渭曾
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-03-25
Filing date: 1991-03-25
Publication date: 1992-04-08

Abstract

The utility model relates to a matrix type permanent magnetic sucking disc, which belongs to the permanent magnet. The utility model adopts permanent magnetic sucking discs of multi magnetic poles whose polarities are order and are arranged in rows and columns, and solves the problems the permanent magnet how to enlarge suction-combination surface of magnet force. The utility model is applied in a conveying apparatus for coals, which is used for cleaning ferromagnetism objects such as iron nails in coals; a lifting sucking disc composed of the sucking disc and a pure iron matrix plate can lift steel sheets with thickness about two millimeters; thus the utility model solves the problem that the existing lifting device of magnetic force has low efficiency.

Description

Matrix type permanent magnetic sucking disc

The utility model relates to a kind of permanent magnet sucker, particularly array-type permanentmagnet suction cup, belongs to the alnico magnets class.

At present the permanent magnet that uses mostly is the clavate or the shape of a hoof, and their shortcoming is that magnetic force adhesive face is less than normal, be difficult to be applied in need very big magnetic force adhesive face occasion, such as in the coal conveyer in order to remove ferromagnetic objects such as the iron nail that is being mingled with in the coal, detonator.Can only use work of electromagnet at present, but its meeting heating under the use of long-time, big electric current influences magnetic force, blows with fan and both expends a large amount of electric energy, and very big noise pollution is arranged again.

The utility model purpose is, provides a kind of magnetic force adhesive face big permanent magnetic chuck for overcoming above-mentioned shortcoming, and special use replaces the work of electromagnet under the various different operating modes.

Technical solution of the present utility model is to adopt shape of a hoof permanent magnet is expanded to matrix form, promptly have a plurality of bigger rectangular magnet sections, and all by row, the permanent magnetic chuck of many magnetic poles that row order proper alignment, as Fig. 1 is the array-type permanentmagnet suction cup of two row, three row, the magnet end face is magnetic pole just, its N, S polarity is orderly, all alternately be expert at, listing conversion successively, shown in Fig. 3 example, also we can say about or up and down two adjacent magnetic poles be opposed polarity, and as seen from Figure 3, the pole piece spacing in the matrix between row and row or column and the row is equally spaced.The magnetic force adhesive face shape of above-mentioned sucker can be rectangle, also can be circle.

Below in conjunction with embodiment and accompanying drawing operation principle of the present utility model is described below:

Fig. 1 is the shape assumption diagram of the array-type permanentmagnet suction cup of two row, three row

Fig. 2 is the hoisting suction cup schematic diagram of application matrix formula permanent magnetic chuck

Fig. 3 is the example of the pole polarity Pareto diagram of two array-type permanentmagnet suction cups

Embodiment 1: the array-type permanentmagnet suction cup that adopts 4 row, 38 row, its magnetic force adhesive face is about 7000 square centimeters, plan is applied in the coal conveyer, remove the ferromagnetic object that is being mingled with in the coal to replace original work of electromagnet, its advantage is, it is consumed power neither, can prevent the defective of electromagnet omission again.

Embodiment 2: the hoisting suction cup that application matrix formula permanent magnetic chuck is made, as shown in Figure 2, (1) is array-type permanentmagnet suction cup among the figure, (4) equal the pure iron matrix plate of t for thickness, this plate is the plate object that casts in epoxy resin (3) with the supporting pure iron piece (2) of array-type permanentmagnet suction cup (1) a plurality of.Pure iron piece (2) is as the extension part of sucker magnetic pole, and its material can be selected the big armos iron of magnetic flux density (being commonly called as soft iron) for use, and the effect of pure iron piece is in order to control the loading and unloading of hoisting suction cup.(sucker holds steel plate for loading, discharging steel plate and be unloading) difficult point of hoisting suction cup is unloading, unloading of the present utility model is to utilize pure iron matrix plate (4), during loading the pure iron piece as the extension of sucker magnetic pole and with steel plate (5) adhesive, the pure iron matrix plate is with motionless by the suction steel plate during unloading, only with permanent magnetic chuck (1) translation to the left on top, see the direction of arrow among Fig. 2, because the tensile strength of the magnet magnetic line of force is very high a little less than its shear strength, the magnetic line of force between magnet and pure iron matrix plate is cut off by system during translation, so more laborsaving.Simultaneously, the distance of magnet end identity distance steel plate is t, when t greater than certain numerical value then the suction between magnet and steel plate can omit and disregard, thereby reached the purpose of complete discharge, otherwise, permanent magnetic chuck is pushed back to the right again, the magnet end face is coincided with the pure iron piece once more, loaded exactly.＜annotate: the numerical value of t will be different with the size of permanent magnetic chuck, magnetic field intensity etc., can directly be decided by test 〉.

The shell of sucker is produced on securely with pure iron matrix plate (4).And form an integral body, and a bale handle is arranged at the top of shell, and available crane promotes it.After loading, steel plate be pull-in on the pure iron matrix plate below, so just can transport with crane.About making the employed material of shell, only requirement can be convenient to processing and fabricating, and has enough intensity just passable.

This hoisting suction cup is compared with present similar technology, such as the permanent magnetic lifter system of the CN2076088U of May in this year bulletin magnet is turned at the plane internal rotation perpendicular to the absorbate surface, makes the purpose that reaches loadings, unloads. Efficient was very low when this magnetic field pulse hoist was inhaled sheet metal. The utility model adopts magnet translation or rotation in the plane that is parallel to the absorbate surface therefore can make very big magnetic attraction face textural with controlled loading, unloading. Such as the magnetic attraction face of making more than 400 square centimeters, can effectively promote thickness only is the sheet metal of two millimeter.

Advantage of the present utility model:

Owing to adopted the structure of matrix form, except increasing the magnetic attraction face, also had following advantage:

1 can give full play to the potentiality of magnet, makes the magnetic line of force that has produced orthogonal directions.2 can correspondingly add large matrix according to the increase of required magnetic force.3 requirements according to different operating modes can change the parameter ratio of row, column, as select two row, six row, six row, two row or triplex row four column matrix etc. for use, often be written as 2*6,6*2 or 3*4 matrix, utilization is compared with electromagnet flexibly, advantage is: 1, consumed power not, 2, do not need frequent maintenance.

Claims

1, a kind of array-type permanentmagnet suction cup, it is characterized in that: array-type permanentmagnet suction cup (1) is the sucker of many magnetic poles, its N, S polarity is that two adjacent magnetic poles are opposed polarities, and by row, column sequential scheduling spacing arrangement, an additional pure iron matrix plate (4) below array-type permanentmagnet suction cup (1), pure iron matrix plate (4) is the plate object that casts in epoxy resin (3) with the supporting pure iron piece (2) of array-type permanentmagnet suction cup (1) a plurality of, permanent magnetic chuck (1) and pure iron matrix plate (4) but relative translation.