hoist lifting height

Classification and description of the composition department wire rope hoist wire rope hoist are: motor, pass the idea structure, drum and sprocket. In the mutual position of the motor and the reel can be broadly divided into four different types. Pressed the rope pull large, beautiful, fast,metallurgical hoist crimping a wire rope just a few minutes to complete, greatly reduce the labor intensity, improve work efficiency.
Motor mounted on the outside of the drum hoist, the advantage of the group is good, high degree of common, easily changing the lifting height, means testing convenient.
Electric hoist use, can be very extensive, but can the correct use of the advantages of electric hoist to operate may be very few people, and I am here to suggest that you need to better understand the characteristics of electric hoist, this knowledge, this is more of Hoist use better.

metallurgical hoist

 Crane is widely used in industrial and mining enterprises of a hoisting machine, a locomotive depot now more than one bridge crane attachment, use frequent daily workload. Bridge crane able to work directly affect the safety of locomotive maintenance task completion and personal equipment.explosion proof electric hoist Drag the original use of the bridge crane system using AC induction motor winding, the inner rotor circuit external resistor in series with the multi-speed, cam controller, relay - contactor control.

electric Hoist features

Compact electric 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.
Structure and characteristics: The machine uses a mechatronic design, changing different molds, it can suppress the different specifications of the rope, the dominant 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 electrical hoistst 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.
Classification and description of component departments wire rope hoist wire rope hoist are: motor, pass the idea structure, drum and sprocket. In the mutual position of the motor and the reel can be broadly divided into four different types. Pressed the rope Rally, beautiful, fast, crimping a wire rope just a few minutes to complete, greatly reduce the labor intensity, improve work efficiency.
Motor mounted on the outside of the drum hoist, the advantage of the grouping, and high degree of common, easily changing the lifting height, means testing convenient.
electric wire rope hoist  use, can be very extensive, but can the correct use of the advantages of electric hoist to operate may be very few people, and I am here to suggest that you need to better understand the characteristics of electric hoist, this knowledge, this is more of Hoist use better.

cranes Practice

1. Before use, check each metal structural components and exterior situation intact, no-load running sound normal, heavy-duty brake reliable test, each safety limit and protection devices complete and intact, sensitive and reliable, before the operation.
2. When operating each controller, the operation should be followed step by step, the more non-stop operation. When changing direction of operation, the operating handle should be zero, until the motor stops before reversing operation, and strive to smooth, non-stop emergency open.
3. Equipment in operation, as found in machine there are unusual circumstances, should immediately stop inspection before they are allowed to run until troubleshooting.
4. Strict certificates, Do not drink and work, instead of non-stop operation with trip switches, prohibited illegal operations and unauthorized absence from work or driving the machine to others.
5. Shipment weight, you should leave the ground at a distance, can proceed after checking reliable braking.

Electric hoist Profile

metallurgical hoist is a special lifting device, installed on the crane, above the gantry crane, electric hoist with a small size, light weight, simple operation, easy to use features for industrial and mining enterprises, storage terminals and other places. Weight is generally from 0.1 to 80 tons, lifting height 3 to 30 meters. By the motor, transmission and rolls or sprockets, divided into wire rope electric hoist and explosion proof hoist. Wherein the chain hoist into two kinds of imported and domestic; wire rope hoist sub-single-speed lift, two-speed lift; mini electric hoist, hoist, hoist multi-functional.
Reducer, lifting motor, run the motor off firearms, cable slide wire, drum equipment, hook device, coupling, flexible cable and other set current into power and braking force in one. Hoist usually installed in the single-girder cranes, bridge cranes, gantry cranes, hanging on cranes. Slightly modified, it can also be used as a hoist. Therefore, it is to improve labor efficiency, improve the working conditions of the necessary machinery.

Composition structure electric hoist

electrical hoists structure reducer: using three fixed helical gear rotating mechanism, the gear and the gear shaft of heat-treated alloy steel box, cover made of high quality cast iron, fitted tightly sealed. Reducer self-contained unit, loading and unloading is very convenient.
Control box: use can cut off the main circuit in case of emergency, and up and down stroke protection off the fire stopper with means. Ensure the safe operation of the hoist. Electric long component life and reliable use.
Rope: the GB1102-74 (6 * 37 + 1) X-type lifting cables to ensure durability.
Tapered Motor: Lifting motor with large starting torque tapered rotor brake asynchronous motor, no external brake. 25% duty cycle motors, motor with Class B or Class F insulation, electrical protection class IP44 / IP54.
Button switch: Hand operating lightweight and flexible, sub-corded and wireless remote manipulation of two ways.
Part of the hoist are: motor, transmission, drum and sprocket.
In the mutual position of the motor and the reel can be broadly divided into four different types:
(1) The motor axis is perpendicular to the axis of the hoist drum using a worm gear, a large width aspect size, structure bulky, low mechanical efficiency, more difficult process, has not produced to the structure type of product.
(2) The motor axis parallel to the axis of the mandrel explosion proof electric hoist, the advantage of small size, height and length. The disadvantage is the width of large size packet of manufacture and assembly of complex, large turning radius orbit.
(3) The motor mounted on the inside of the drum hoist, the advantage of a small length dimension, compact structure. Its main drawback is the motor cooling conditions are poor, poor packet, inspection, installation, maintenance motor inconvenience, power supply unit complex.
(4) mounted on the outside of the drum motor hoist, the advantage for the group, and high degree of common, easy to change the lifting height, easy installation and maintenance. The drawback is the length of large size.

metallurgical hoist Installation Notes

metallurgical hoist installation is a very important job, not only to prepare for pre-installation, but also noted the need to pay attention to the specific installation.
A, to ensure the metallurgical hoist operation to track ends without derailing or prevent collision damage to body should be set up at both ends of the elastic buffer in orbit.
B, the metallurgical electric hoist installation, you should check whether the plug block with fixed rope loose.
Should a ground wire, bare copper ground wire available or sectional φ4-φ5mm on C, track or frame is not connected to a metal wire less than 25mm².
D, electrical equipment for all electric power circuit, the control circuit to ground resistance must not be less than per volt operating voltage 10000Ω.
Comprehensive inspection after the installation of electric metallurgical hoist