(1) Object swinging, colliding, falling over During lifting operations, due to operations, bundling, hooking, command and equipment defects, faults, etc., it will cause the object to be swayed, collided, tipped over, or even injured. accident. Interior Led Lights,Led Indoor Lighting,Indoor Flood Lights,Indoor Decorative Lights B-F-B-ic international Ltd.co , https://www.ledgather.com
(2) Causes of object swing
1) The brake shoe of the cart or trolley brake is too tightly adjusted, vibration occurs during braking, and the object cannot be stopped in time.
2) The important parts of the transmission mechanism have a large amount of wear and a large gear gap.
3) The value of the lower beam (upper arch) of the main beam of the bridge type crane is too large, causing the car to automatically slip.
4) There are oil, ice, snow, water, etc. on the track. The object swings with the big car or the car shaking.
5) The heavier the weight of the object, the worse the stability. The operation is unskilled, the starting and braking actions are too strong, and the object swings.
6) Improper command; slanting sling; unbundling or hanging.
7) When lifting large pieces, the anti-sway rope is not tied.
8) In violation of regulations, rely on the anti-vehicle to brake the parking.
(3) Causes of object collision
1) The brake is out of order, causing the cart or car not to stop immediately.
2) The brake solenoid coil is grounded, and the brake is still released after the motor is de-energized.
3) If the controller contact is in poor contact, the operating mechanism of the household will be out of control and cannot stop.
4) The stroke limit position limiter is invalid.
5) The main beam of the bridge crane is severely scratched, and the trolley automatically slips.
6) There are grease, water, ice, etc. on the top of the track to make the cart or car slide.
7) Improper bundling or hanging, causing the hanging object to get out of control.
8) Non-driver operation, undocumented command, illegal operation.
9) Simultaneous manipulation of more than two handles. Failure to control in time.
10) The running speed is too fast, the energy is not concentrated, and the observation and the lookout are ignored, causing collision.
11) Misoperation makes the object swing too much. The working environment is poorly lit and the field of view is poor.
(4) The object is overturned
1) Improperly bundled. The tie is not true; the bundling and tie are unreasonable, and the center of gravity is biased aside.
2) The rate of decline is too fast. When the object has not been stabilized, the hook is turned over.
3) The sling has deformation or strength and the object is unhooked.
4) The connected object is connected to another object, which not only causes the center of gravity of the object to be overturned, but also causes the connected object to fall over.
5) The ground on which the object is placed is uneven or unreal, causing the object to tilt over.
(5) Preventive measures and contraindications
I) Check the brake device and the limit position limiter according to the operation procedure regularly, and find that the transmission mechanism has an abnormal phenomenon and remove it in time to keep the crane in normal operation.
2) If the main beam is bent or arched seriously, the car should be repaired in time.
3) Clear the oil, ice, snow, water and other debris in the track in time.
4) When operating, it must be light and light, and the lifting and lowering hooks should be slow, and the middle running should be stable.
5) Bundling or hanging is reasonable. When lifting large pieces, one must bolt the anti-sway rope.
The location where the object is placed should be flat and solid.
7) Concentrate on energy, pay attention to observation and gaps, and prevent misoperation when the object is connected to another object.
8) It is strictly forbidden to pull the sling.
9) It is forbidden to use the reverse vehicle to brake the parking.
10) It is not possible to operate more than two handles at the same time.
11) The working environment cannot guarantee that the crane should stop working when it is working normally.
12) Check the sling before work, and if the lifting operation is not met, replace the sling or stop the operation.