Q:The electromagnetic Jack does not seem to use the principle of electromagnetic induction.

The permanent magnet electric energy saving and safety because of its unique properties, are widely used in the installation and removal of steel, machinery parts and all kinds of mold, mechanical processing, shipbuilding, engineering machinery, automobile and other industries for lifting, handling and other operations of the preferred lifting tool, we can often be in factories, docks, warehouses and transportation see this kind of products in the industry. HEPM92 electric permanent magnetic crane

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:The principle of an air compressor for connecting two pistons

In order to improve efficiency and reduce air temperature, intermediate cooling is needed. As the piston type air compressor air compressed by two stage low pressure cylinder pressure from p 1 to p 2, T l to T temperature by 2; and then flows into the middle cooler, at constant pressure of cooling water heat, the temperature is T L; the high pressure cylinder compression pressure to 3 P. As can be seen from the diagram, the air temperature T, l and T 2 entering the low pressure cylinder and the high pressure cylinder are located on the same isotherm 12 '3', and the two compression processes deviate from the isotherms. The same compression ratio p 3 / P 1 single stage compression process is 123 ", which is much higher than the two stage compression deviation from isothermal 12 '3', that is, the temperature is much higher. And the single stage compression work is equivalent to the area of 613 "46", and the two stage compression work is equivalent to the sum of 61256 and 52 '345 in the figure, and the work saved is equivalent to 2' 23 '32'. It can be seen that the staged compression can reduce the exhaust temperature, save compression work and improve efficiency.

Q:What are the protective measures against crane injuries?

The crane to achieve the "ten not hanging": the hanging weight unknown is not suspended or overload, the command signal not unknown crane, crane, not illegal command hanging rickety bundle not hanging, hanging on someone without lifting, crane safety device is not hanging, hanging objects buried in the underground crane, workplace light the dark line of sight is not clear or not hanging, hanging crane cable-stayed and angular load did not take the corresponding protective measures are not hanging. The lifting operation shall not be carried out under the strong winds of grade six or six.

Q:Hoisting safety notice

Safety measures shall be taken to prevent the overturning of the crane (1). The road on the lifting site shall be level and solid, and the backfill and soft soil shall be treated. If the soil is soft, roads should be paved separately. Parking crane is not working on a slope, also does not allow the crane two side high. (2) overload lifting is strictly prohibited. (3) prohibition of oblique hanging. Inclined hanging will cause overload and wire rope out, and even cause tension rope and rollover accident. The crane also causes the heavy object to swing out of the ground rapidly and may cause people or other objects to be damaged. (4). The component shall be binding sling after calculation, all lifting tools should be regularly checked, make an appraisal on the damage, the binding method should be correct and firm, to prevent lifting slings breaking or slipping from the component, the crane tipping and weight loss. (5) important components and equipment that are not suspended from weight. (6) prohibit lifting operation under the condition of grade six wind. (7) command personnel should use unified command signal, which should be clear and accurate. The crane driver should obey the command.

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

The screw jack can support heavy load for a long time, the maximum lifting capacity has reached 100 tons, and it is widely used. When the lower part is loaded with a horizontal screw rod, the heavy object can be moved at a small distance.

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:What are the heavy lifting units commonly used in hoisting operations?

Wire rope rope card is mainly used for wire rope and wire rope wear around the temporary connection block when the hand rope is fixed, and the cable wind rope head pole is fixed on the other.It is a widely used wire rope fixture in lifting operations. Commonly used wire rope clips, there are 3 kinds of riding, fist grip and press plate type. Among them, the riding card is the most powerful connecting standard, and the wire rope clip is the most widely used.

Q:What are the characteristics of HHXG type inverted chain chain electric hoist?

Structure of party workers to operate a variety of mechanical lifting tools related products such as: black bear small diamond chain electric hoist, hoist, hydraulic jack, three spring balancer, Longsheng plate clamp, dragon masunaga magnet, horse sand hydraulic jack, straight weight shifting device, permanent magnet lifter, ultra thin hydraulic cylinder, mini chainhoists.