What accidents are likely to occur during the usage of the truck crane?
Time:2020-12-21
Views:484
Truck mounted cranes are special vehicles for engineering and construction. It is very important to operate safely during the operation. It is reported that truck-mounted crane operation accidents occur every year, so which accidents are easily caused by truck-mounted cranes?
First, the rollover accident
1. Improper support operation of the crane during operation, such as uneven or soft foundation, and no special skid under the outriggers, can easily cause a rollover accident.
2. The truck-mounted crane is used according to the original performance table when the outriggers are not fully extended.
3. Overload: In actual work, due to unclear estimation of the weight of the hoisted items, or insufficient attention to safety and overload operation, the crane loses stability and causes a rollover accident.
4. The rotation of the truck-mounted crane operation project should be slow. If the rotation is too fast, the centrifugal force of the crane will be greater, which will easily cause swinging of the arm, which will lead to rollover.
Second, broken arm accident
1. If the truck-mounted crane lifts the cargo with excessive torque, the boom will break.
2. The operator of the truck-mounted crane was careless, and the boom was driven on the road before the boom was fully retracted after the work was completed, causing the boom to hit the bridge hole, height-limiting rod, etc., causing the boom to break.
Third, decoupling accident
Crane unhooking refers to the accident of heavy objects falling out of the hooks caused by heavy objects or special spreaders. The main reason is the failure of the lock anti-drop device of the hook or the improper lifting method.
Fourth, short rope accident
Short rope accident refers to the accident of heavy object loss caused by broken wire rope or hoisting rope buckle. The main reason is that the wire rope is broken by the overloaded hoisting belt-loaded telescopic boom, the wire rope is crushed and cut due to the slanting and oblique crane, or the short rope is caused by the continuous use of the wire rope exceeding the scrap standard.
Fifth, electric shock accident
Electric shock accidents generally refer to life accidents caused by electric shocks or electric shocks for truck crane operators. The cause of electric shock is mostly because the crane arm is too close to the high-voltage wire (not enough safety distance is not guaranteed), so that the crane itself is connected to electricity, which in turn causes the operator to indirectly suffer from high-voltage electric shocks.
First, the rollover accident
1. Improper support operation of the crane during operation, such as uneven or soft foundation, and no special skid under the outriggers, can easily cause a rollover accident.
2. The truck-mounted crane is used according to the original performance table when the outriggers are not fully extended.
3. Overload: In actual work, due to unclear estimation of the weight of the hoisted items, or insufficient attention to safety and overload operation, the crane loses stability and causes a rollover accident.
4. The rotation of the truck-mounted crane operation project should be slow. If the rotation is too fast, the centrifugal force of the crane will be greater, which will easily cause swinging of the arm, which will lead to rollover.
Second, broken arm accident
1. If the truck-mounted crane lifts the cargo with excessive torque, the boom will break.
2. The operator of the truck-mounted crane was careless, and the boom was driven on the road before the boom was fully retracted after the work was completed, causing the boom to hit the bridge hole, height-limiting rod, etc., causing the boom to break.
Third, decoupling accident
Crane unhooking refers to the accident of heavy objects falling out of the hooks caused by heavy objects or special spreaders. The main reason is the failure of the lock anti-drop device of the hook or the improper lifting method.
Fourth, short rope accident
Short rope accident refers to the accident of heavy object loss caused by broken wire rope or hoisting rope buckle. The main reason is that the wire rope is broken by the overloaded hoisting belt-loaded telescopic boom, the wire rope is crushed and cut due to the slanting and oblique crane, or the short rope is caused by the continuous use of the wire rope exceeding the scrap standard.
Fifth, electric shock accident
Electric shock accidents generally refer to life accidents caused by electric shocks or electric shocks for truck crane operators. The cause of electric shock is mostly because the crane arm is too close to the high-voltage wire (not enough safety distance is not guaranteed), so that the crane itself is connected to electricity, which in turn causes the operator to indirectly suffer from high-voltage electric shocks.
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