Q:The permanent magnet (permanent magnet sucker) the principle of who knows?

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.

Q:Rack type lifting machine, rack press, rack lifting machine

The rack press is the abbreviation of the press, hydraulic press and hydraulic press. The press refers to a kind of forming machine used for the pressure forming of the industrial products. The hydraulic cylinder is generally used, so it is also called the hydraulic press. In the building material industry, the press is the abbreviation of the brick press, and the press breaks up the dynamic brick machine and the automatic hydraulic brick machine.

Q:The principle of an air compressor for connecting two pistons

Piston type air compressor is composed of 1 Basic exhaust valve of the compressor 2 - 3 - 4 - cylinder piston piston rod 5 - 6 - 7 - crank slider linkage 8 - suction valve 9 - valve spring this structure the total residual volume in the exhaust process at the end. During the next suction, the compressed air in the remaining volume will expand, thereby reducing the suction air volume, reducing the efficiency and increasing the compression work. And when the compression ratio increases, the temperature rises sharply due to the existence of residual volume.

Q:Is the electric crane with track electric hoist or other mechanical products?

The crane with track has electric hoist, single beam crane, double beam hoist crane. Double beam bridge crane, Longmen crane. Cranes usually have rails.

Q:Please explain how to prevent the safety accidents in the process of tower crane installation and disassembly

Tower crane disassembly method and installation method is the same, the program is just the opposite. When folded, the building has been built, and the site is not so spacious as to be installed. Therefore, we should never take it lightly.1, tower crane demolition of the basic requirements and installation of the same.2, the process of disassembly is strictly prohibited to use cutting scarify.3, remove the bolts, pins, and spare parts should be packing plate joint custody.4 、 the operation room is closed with iron sheet.5, the rotating machinery for maintenance, oil, sealed.6, the appearance of paint anti-corrosion.7, after the removal of tower cranes, conditional storage of the storage of some parts, unconditional storage part of the transfer to the vicinity of the special line stacking, ready for shipment.

Q:When should the temporary fixing tool for lifting work be removed?

Phosphating coating to improve the wear resistance and corrosion resistance of steel wire, not easy to wear and corrosion, is to improve the service life of wire rope reasons, smooth steel wire rope is being completely eliminated.

Q:Working principle of mechanical screw jack

Jack by the manpower through the screw drive, screw or nut sleeve as the top lift, jack screw thread self-locking action on the support, to avoid severe vibration should be top jack jack jack users to use process, according to the use of regular inspection and maintenance is made of high quality alloy steel material, more durable than similar products, as a commonly used lifting tool, Baoshan screw jack is a good helper to improve work efficiency. In the use of Jack, if only one, then be sure to select the weight of the center of gravity, and then point to the center of the jack, so as to prevent the lifting process in the tilt, resulting in accidents.

Q:Classification of lifting tools

Light and small lifting equipment mainly includes lifting tackle, spreader, Jack, electric hoist and ordinary winch. Most of them are small, light and easy to use. In addition to electric hoist, the vast majority of manpower driven, applicable to the work is not heavy occasions.

Q:I want to know what the principle of magnetic suspension is. Why does it make magnetism disappear?! What is the structure like?!

Magnetic crane also known as the permanent magnet by high performance NdFeB permanent magnetic material magnetic system, by turning the handle, change the magnetic system of magnetic workpiece holding and releasing.

Q:What elements should I take into account when purchasing a car?

With the current transportation engineering machinery industry competition is becoming increasingly fierce, many people also want to enter the vehicle crane market, in order to share a cup of soup, and the current market situation is like a siege, which people want to go out free, outside people eager to enter the subway transportation experience.