The permanent magnet (permanent magnet sucker) the principle of who knows?
Permanent magnetic chuck is designed by using the principle of superposition flux continuity principle and magnetic field of the permanent magnetic circuit design, magnetic chuck into a magnetic system, the relative motion of the magnetic system, realize the magnetic pole on magnetic field strength additive or cancellation, so as to achieve the purpose of holding and unloading.
The permanent magnetic chuck, also known as a permanent disk, is a magnetic chuck because it is known for its long or permanent magnetism. According to its use, application range can be classified, because of its convenient operation, energy saving and environmental protection, is widely used in the machinery manufacturing industry.
The working principle as shown in Figure 1, when the permanent magnet sucker pole in figure (a) state, lines from the N pole of the magnet, the yoke, through a ferromagnetic workpiece, back into the S pole of the magnet yoke. In this way, can make the workpiece firmly attracted to the permanent magnet sucker working faces. When the poles in the graph (b) state, lines to permanent magnet sucker work closed loop is composed of magnetic pole, the permanent magnet sucker inside, almost no lines from the permanent magnetic chuck work faces, so the workpiece does not produce suction, can smoothly unload.
Permanent magnet sucker (also known as the permanent magnet lifter, Permanent Magnet Lifter) into manual type permanent magnet lifter and automatic permanent magnet crane two, using modern high performance Nd-fe-B NdFeB magnetic material, the smaller, lighter weight, better retention, unique magnetic circuit design the residual magnetism is almost zero. High safety coefficient, the maximum pull-out force is rated 2.8-4 times of gravity. Manual type permanent magnet lifter handle with safety switch button, single hand operation, convenient and safe. Design of "V" groove for lifting bottom. Full automatic permanent magnet crane without human pull handle, by lifting the electric hoist hook can control adsorption, round steel, steel plate, lifting the corresponding electricity, safe use, widely used in steel lifting, installation and handling machinery and all kinds of mold parts of the formation of. The utility model is suitable for lifting tools such as shipbuilding, construction machinery, automobiles, etc. at normal temperature, steel plate lifting, conveying and the like. Mainly used in hoisting process and the hoisting of the workpiece connection, (such as: and chain hoist, wire rope, electric hoist and so on), used for moving iron plate, block and cylindrical magnetic conduction material work. Easy to operate, safe and reliable, compact and light results. Widely used in factories, docks, warehouses, transportation industry. Improve working conditions of loading and unloading, improve labor efficiency.
