The wire rope electric hoist is a small lifting tool commonly used in various industries. The safety issues of wire rope electric hoists are very important. This article summarizes the safety risks of wire rope electric hoists and some factors that lead to risks.
The CE approved electric wire rope hoist for sale in SEVENCRANE is a lifting hoist that is composed of a motor, a reducer, a brake, and finally winds up a lifting rope through a drum or a lifting chain through a sprocket to drive the lifting device up and down. The electric hoist can be installed alone on the I-beam, or it can be installed on electric or manual single-beam, double-beam, cantilever, gantry and other cranes.
According to whether the electric hoist has an operating mechanism and the type of operating mechanism, it is divided into: fixed electric hoist, single-beam trolley-type electric hoist and double-beam trolley-type electric hoist. Electric hoists without operating mechanisms and for fixed use can be divided into two types: support type and suspension type according to different installation methods. The main components of the wire rope electric hoist are: brake, reducer, drum and wire rope.
The SEVENCRANE electric wire rope hoist cost is the main load-bearing component of the wire rope hoist and it is used very frequently. During maintenance, it is necessary to check the strength of the wire rope frequently and add lubricating oil to the wire rope regularly to reduce the friction between the wire rope and objects. In addition, if the steel wire rope reaches the scrap condition, it should be scrapped and replaced with a new one in time. As an important component of the wire rope electric hoist, the drum is squeezed, bent and torsioned by the wire rope during operation. During routine maintenance, if cracks are found on the reel, it should be scrapped immediately to eliminate potential safety hazards. Secondly, the wear degree of the rope groove of the drum should not exceed 2 mm. If it exceeds, the groove must be re-grooved.
However, the wall thickness of the drum should not be less than 80% of the original wall thickness, and there should be no cracks on the top and bottom of the drum. The reducer needs to be regularly filled and replaced with lubricating oil, otherwise it will not only produce an excessive “buzzing” sound, but also cause excessive wear or damage to the gears or bearings. If the reducer gear is excessively worn or damaged, or the reducer bearing is damaged, it needs to be disassembled, inspected or replaced immediately to eliminate the fault and reduce the noise. Brakes are an important component to ensure work safety. They can prevent heavy objects from falling suddenly and implement parking functions. If there is a problem with the brakes, safety accidents may occur.
Electric hoists are lifting equipment. Due to operating factors, equipment factors and environmental factors, there are major risks such as lifting injuries, object strikes, and falling from high places.
1. The main operational factors include:
(1) Improper lifting methods and loose binding may cause decoupling, scattered or swinging of the lifting objects and injury to people;
(2) Violation of operating procedures, such as casualties and equipment damage caused by skewed lifting, overloaded lifting, people working in dangerous areas, etc., as well as overloading, over-hoisting, and derailment caused by operators not using safety devices in accordance with regulations. , tipping and other accidents;
(3) Collisions caused by improper command and uncoordinated movements.
2. Equipment factors mainly include:
(1) Failure of the spreader, such as the fall of heavy objects caused by damage to hooks, wire ropes and their fixed parts;
(2) Accidents caused by the failure of the control system of the lifting equipment or the failure of safety devices such as weight limiters, limiters, brakes, etc., such as the failure of the braking device causing the impact and pinching of heavy objects;
(3) Accidents caused by insufficient component strength, such as accidents caused by collapse or falling due to failure of electric hoist fixings;
(4) Electric shock accidents caused by damaged power cords, electrical appliances, poor insulation, improper grounding, etc.
(5) Electric hoist derailment or derailment caused by rail gnawing, excessive wear, or bending.
3. The main environmental factors include:
(1) Collision and extrusion accidents caused by crowding and clutter in the venue;
(2) Collisions caused by insufficient brightness and blocked line of sight, etc.
(3) Equipment accidents such as derailment, collapse, and overturning caused by strong natural disasters such as lightning, gusts, tornadoes, typhoons, and earthquakes.
The above is an introduction to some technical knowledge about electric wire rope hoists. If you want to know more about crane hoists, for example, you need to know the european standard electric wire rope hoist price. Please click the inquiry button to contact us. As a well-known crane manufacturer and exporter in China, SEVENCRANE has been committed to this industry for more than 30 years. Its product quality is guaranteed and its after-sales service is perfect, and is well received by customers. We are the top choice for electric wire rope hoist, so please feel free to call us anytime to learn more about the industry.
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