Q:Does the crane hook group include the secondary hook and the main hook

Hook group is collectively referred to as the main hook and the hook are hook group. Two refers to the crane hoisting mechanism

Q:What is the location of the cover plate embedded hook

When installing steel bars in 2.2.3.1, the location of the reinforcement and the thickness of the concrete protection layer shall comply with the design requirements. Should be embedded in the 12 reinforced hook, and embedded steel hook and cover the main steel connection. Between the steel mesh and the bottom of the cover plate

Q:what is Technical requirements for hooks

The utility model can be used to select the two suitable positions to print the marks which are not easy to wear at the shortest distance of the opening of the hook, and to measure the distance of the marks as the basis for detecting whether the opening degree is changed in use.

Q:What is the standard of lifting hook?

The core shaft should be scrapped when the core of the hook is worn up to 5% of the original size

Q:Loading hook for elevator room

The hook is a steel ring attached to the beamThe effect is to hang thingsThe work principle is a support point

Q:How to wear a steel rope for 20 ton double beam overhead crane?

From the middle of two respectively through the corresponding side of the movable pulley, then upward through the two fixed pulleys corresponding to one side above the rest, and then put down through the following two sides of the movable pulley corresponding to one side, finally to the steel wire rope is fixed on the fixed on the reel.

Q:What are the dangerous sections of the crane hook

by the A-A sling tension section on the one hand, the hook has straightened trend; also by the effect of bending moment on the other hand. Because the moment in this section, the bending stress is maximum, this section is a dangerous section.

Q:What safety device should be installed on the hoisting hook of crane

The safety device of the hook is mainly reflected in the anti falling off:First, to prevent the sling on the hook, the hook automatically from the insurance device. The utility model is characterized in that a clamping spring piece is arranged at the opening of the hook head, and the opening is closed, and the spring sheet can only be pressed downwards, and can not be turned upwards when the sling is released, which can prevent the sling from falling off automatically.Two, tower crane hook anti off safety device, which is composed of a nut, rope, wire rope, pulley, ring, hook, chain box sling, material box, hook, hook, the first locking type lock opening, elastic lock opening and the movable locking strip integral. Which is an annular chain or circular chain, namely the chain chain type, its end and the first connecting hook, other end connected with the pulley rope, which is between the traditional hook and rope pulley is connected with the chain chain, increase the class, especially the ring chain.Three, then the tower crane lifted the circular chain safety device, which is characterized in that the lock closed hook, the movable locking strip, hanging hook, unloading, only the elastic movable locking strip with hands pressed down, can be put into the ring chain, loose, locking bar under the action of the spring force, automatically closed lock you can.Four, precautions and assembly measures are shown below:

Q:Hooks need to be made of I steel, and shall not be cold processing, what does it mean?

What you say is on the site, used for hanging objects, called embedded rings, long for the lifting ring and lift the lifting ring, the specification requirements must be hot rolled 1 steelCold processing refers to the cold rolled steel or cold drawn steel, the tensile stress of the steel is high, the ductility is small, prone to brittle fracture, in the process, easy to form processing damage, it is not allowed to useCold rolling processing need heating? Oh oh? What do you see in that country?No, bending is required as required by the drawing

Q:Elevator roof hook usually a few?

General requirement is that there is at least one computer room, bearing capacity of not less than 2T