Electrical hoists , also known as
fairy gourd, do not drop pounds, manual hoist, is a simple to use, easy
to carry the manual lifting, also known as "chain hoist "or" down the chain. " The
main chain hoists used in factories, mines, construction sites,
wharves, docks, warehouses and other places, metallurgical hoist
for mounting machine , lifting goods, especially for open and no power supply shows its superiority. Also suitable for short-distance small lifting equipment and cargo, the weight is generally no more than 100T. Metallurgical electric hoist shell material
is high-quality steel, extremely resistant,
high-performance security. When
chain hoists heavy lifting upward, hands clockwise drag chains,
bracelets wheel rotates counterclockwise when pulling hands to pull the
chain down the stopper with separate brakes, ratchet pawl still under
the influence, five teeth long axis Lifting wheel drive running in the opposite direction, so the weight steady decline.
Compact metallurgical hoist
structure, the motor axis is perpendicular to the axis of the hoist
drum using a worm gear. The
disadvantage is: the length dimension, large width aspect size,
structure clumsy, low mechanical efficiency, processing more difficult
and so on. Dual control hydraulic system, the overflow valve, magnetic contact pressure gauge pressure can be accurately controlled. Electric control unit uses a low voltage control, increased security
dominate the system, has not produced to the structure type of product.
Explosion proof hoists structure and characteristics: The machine uses a mechatronic design,
changing different molds, pressing to different Specifications rope, domination simple, safe. Its
main drawback is the motor cooling premise poor, poor packet,
inspection, equipment, easy maintenance motors, power supply unit
complex. Electric
motor axis parallel to the axis of the mandrel electric hoist, wire
rope hoist advantage of its height and the length of the small size. The disadvantage is the width of the large size and poor groups, manufacturing and assembly complex.
explosion proof hoist is the latest standard design and manufacture of explosion-proof lifting equipment, its proof in the form of "flameproof" made of a gourd explosion exposed parts with a special non-sparking materials, safe and reliable explosion-proof performance. Product performance testing by the Ministry of Machinery Industry explosion-proof electrical products for Quality Supervision and Inspection Center, and presented proof certificate.
electrical hoists applicable to Class I non-mining face coal mine explosion site and apply to Class II explosion has ⅡA, ⅡB, ⅡC level, temperature group T1- T4 group explosive gas or flammable gas, steam and air mixture in place. Working environment temperature -25 ℃ ~ 40 ℃, suitable for indoor use; when used outdoors, and needs protection.
