1、 What are the safety techniques for lifting and hoisting? below Huai'an Crane Rental Company Let's get to know!

1. The crowbar shall bear large bending moment when working, and its shape and size shall be easy to operate. Do not use other components instead to avoid operation, fracture, flattening, deformation, etc. when prying heavy objects.

2. The fulcrum shall be a solid component, and objects that are easy to slide, break or irregular shall not be used to avoid slipping when using crowbars at heights.

3. It is forbidden to operate near the edge of the dangerous position if injury is caused. Prevent the crowbar from slipping and the center of gravity of human body from getting out of control, which may cause people to fall when using the crowbar.

4. Do not lengthen or indulge at will to prevent slipping and hurting people. Multiple people working at the same time must have a unified command. Rolling river is a kind of round bar that converts the sliding friction between heavy objects and the ground into rolling friction, and is used to transport heavy objects in short distance.

2、 It can greatly reduce the friction between the weight and the ground, but the following points should be noted in use:

1. Under the same weight, the specifications of the drum must be consistent, that is, the diameter, length and material are the same. The length of rolling river shall be greater than the bottom width of the weight. When placing the roller, the exposed length at both ends shall not be less than 15cm.

2. Pay attention to the position of hands. When the drum is made of steel pipe, the thumb should be extended, and the rest of the finger should be placed in the pipe to avoid squeezing the finger.

3. Observe carefully when rolling. If there is skew or deviation, it should be straightened with a sledge hammer or crowbar. It is strictly prohibited to directly contact the rolled reinforcement with hands or feet.

4. The roller can be log, round steel, pipe network or sand filled concrete steel pipe. The chain hoist is a kind of manual lifting tool with the link chain as the flexible part. The utility model is a chain crane with compact structure and convenient use. There are three types: WA, SH, and SBL. The lifting capacity is 0.5~30t, the lifting height is 2.5~3M, and the special lifting height is 12m.

3、 It has been widely used in architecture:

1. The chain block must be used according to the rated lifting capacity. When the temperature is lower than - 10 ℃, the lifting capacity will be halved, the chain pulling speed should not be too fast, the tension should be balanced, and the zipper direction should always be consistent with the sprocket when lifting objects vertically.

2. The tangent line of the zipper shall be consistent, and the zipper operator shall stand at the side of the elevator. The chain connecting personnel can be set according to the weight of the hoisted object, and the maximum number cannot exceed 4. However, during normal hoisting, if the tension suddenly increases, the reason should be found out first, and the manpower should not be increased blindly before hoisting.

3. Carefully check whether the hook is increased, the chain and gear are in good condition, and whether the braking torque is effective. The transmission gear shall be scrapped if there are cracks, broken teeth or 30% wear of tooth thickness. If the chain has plastic deformation or diameter wear, it shall be scrapped by 10%. The braking torque can be tested by trial lifting method, and normal operation can be started only after the reliability is confirmed. The winch is a lifting equipment with manpower. Simple structure. Huai'an Crane Rental The operation is simple. As long as the push rod and drum rotate, the drive wire rope can pull or lift the load depending on the friction between the wire rope and the drum.

1. The grinder shall be fixed with ground anchor and locked with steel wire rope. Before stranding, the first guide pulley of the wire rope must be at the same level as the wire rope pulled in by the drum.

2. The number of coils of steel wire rope wound on the drum is generally 3-5. The winding method is to pull the rope head on the top and pull the rope head to the bottom. When the drawworks is rotating, rope pressing is not allowed when winding in sequence.

3. The pulling rope should be tightened, that is, the tension caused by side pulling. When the tension is small, manpower can be used; When the tension is large, other objects can be used.

4. The winch shall be equipped with braking facilities. When parking, hold the drum with a stick and anchor the pulling rope to prevent the push rod from rotating and hurting people.

5. Push rod and manpower shall be equipped according to the traction force of lifting objects.