跳至主要内容

Safety operation of 2 ton electric wire rope hoist

1.The mechanical parts of the equipment should be checked before lifting, wire rope and hook and limiter shall be in good condition, the electrical part should be no leakage, the grounding device should be good. When lifting heavy weights, after lifting off the ground 10cm should stop to check the brake condition, can be carried out after the confirmation. The open-air homework should set up the canopy.
2.Do not allow overload lifting, hands are not allowed to hold between the rope and the object when lifting, prevent the collision when hanging up.
3.The lifting objects should be tied up, and in the center of gravity. When lifting the heavy, the heavy object should not be too high, the heavy load cross over the head is not allowed, can not be hanging in the air when not working.
4.If electric chain hois emit peculiar smellt in the lifting process or high temperature should stop immediately and find out the reasons.
5.2 ton electric wire rope hoist wire rope on the drum to be wrapped neatly, when the hook is placed in the lowest position, the wire rope reel should be not less than three times.
6.Using suspension cable electrical switch to start, insulation must be in good condition, must slide freely, and operate button correctly and pay attention to the standing position.
7.In the process of lifting, if the heavy fall caused by failure, must take urgent measures to lowering the weight to no one place.
8.Weights must be vertical lifting, no oblique pulling weight, never lift the weight of unknown.
9.After work, electric hoist should be parked in the designated position, the hook rises, and cut off the power.
10.1 ton wire rope hoist should be operated by specially-assigned person, the operator should fully obey the safety control procedures.
Operating conditions of 1 ton electric cable hoist
Ambient temperature: -20℃ ~ +40℃
Work system: intermediate JC25%
Heavy class: JC40%
When the intermediate working system of the electric hoist weight decreased 30%, the 1 ton electric cable hoist heavy duty system JC40%.
1 ton wire rope hoist heavy duty system JC40% is used in relatively heavy load, often in the ratings or under high safety coefficient condition. 2 ton electric wire rope hoist structure reducer: the three fixed axis gear rotation mechanism, gear and gear shaft box made of heat-treated alloy steel, the box and box cover are made of high quality iron assembly tightness, good sealing. The reducer is very convenient to loading and unloading.
Control box: the device can be cut off the main circuit in an emergency, and with the up and down stroke protection of the fault location device. To ensure the safe operation of the 1 ton wire rope hoist. Long life and reliable use of electrical components.
Wire rope: the use of X (6*37+1) GB1102-74 type hoisting rope, to ensure durable.
Taper line motor: the starting torque of the motor with large starting torque of the cone rotor brake asynchronous motor, no external brake. Motor load rate of 25%, motor using B or F class insulation, motor protection class IP44/IP54.
Button switch: operation handy, for string manipulation and wireless remote control in two ways.

评论

此博客中的热门博文

How to deal with 3 ton electric chain hoist motor overheating

Any machine has the cycle and time of operation, is not suitable for a long time continuous operation. Long time operation will cause mechanical damage and even accidents, but in general if the 3 ton electric chain hoist surface temperature is too high, we need to check what is the reason. Firstly to check whether it is because the electric hoist weight is too large, beyond the 3 ton electric chain hoist rated weight. Overweight operation will make the motor over heating, overload for a long time will cause irreparable damage to the electric chain hoists for sale.  Electric hoist motor  is not overloaded, but still heating, should check whether the motor bearing damaged; Should also check whether the motor Work according to regulations, which is one of the reasons causing the motor heating. When the electric hoist motor is running, brake clearance is too small, not completely disengaged, causing great friction, while the frictional heating is also equivalent to the additional load

The reason of electrical wire rope hoist does not work after starting

Mainly because of the hoist does not reach to the rated operating voltage, there are generally 3 kinds of situations: 1.Find out whether the power supply system supply power to wire rope electric hoist , generally used test pencil, such as no power supply; 2.The main control circuit of the wire rope electric hoist is damaged, the line is broken or the contact is bad, can also let the hoist motor not be electrified. This situation, need to overhaul the main control circuit. When maintenance, in order to prevent missing phase to burn the motor casused by the main control circuit supply power to three-phase motor, or hoist motor suddenly operate and cause danger, must disconnect electrical wire rope hoist motor from the power supply, only supply power to the main control circuit. Then start and stop switch, check and analyze the working condition of the electric appliance and the line, repair or replace the failed electric appliance or line. When the main control circuit is confirmed

Working level of overhead gantry crane

Overhead gantry crane  installation site and the work conditions is vary greatly, the use of lifting capacity and working frequency are also different. In order to use the crane economically and reasonably, it is necessary to choose the appropriate working level according to the working condition of the crane. The working level of the bridge crane is divided into A1 ~ A8, according to the level of the crane and the load state, that is, according to the frequency and load degree of the crane through the calculation to determine. The crane has a certain number of working cycles during its useful life. A working cycle of a  travelling gantry crane  is to start the process of loading the goods from the beginning to the next. The total number of working cycles represent the utilization of cranes. In order to facilitate the calculation, the total number of working cycles can be divided into 10 categories. 200-400 ton heavy duty travelling  overhead gantry crane for sale