Proper use and maintenance of the pulley and the way of winding the wire rope

Pulley is divided into single-door block, double-door block and multi-door block according to the number of wheels. It can be divided into hook type block, chain ring type block, ring type block and hanger type block according to the connection mode of the block and hanger. Generally small and medium sized block belongs to hook type, chain ring type and ring type, and large block using ring type and beam type. According to the contact between the wheel and shaft can be divided into two kinds of sliding bearing and rolling bearing installed between the wheel and shaft. Whether can open according to splint to cent, have open block and close block. The splint of the open tackle can be opened for rigging. It is usually a single door tackle. It is often used as a guide tackle at the bottom of the lever. Tackles are divided into fixed tackles and moving tackles according to the way they are used. Easy to use, a wide range of USES, can be manual, motor. It is mainly used in the production and construction of factories, mines, agriculture, electric power, buildings, machine installation of docks, docks, warehouses, cargo lifting, etc. 1. The winding pulley of the pulley is a kind of small lifting tool which is widely used in the lifting machinery transport function. With it and wire rope winding together, coupled with the winch, heavy lifting and transport operations can be carried out. A block can only change the direction of force, not save effort; If two blocks are wound together with wire rope to form a block group, not only the direction of force can be changed, but also the effort can be saved. In the lifting transportation operation, the single-door block is used as the guide block, and the block is combined with the hoist to do the lifting function. (1) single-door block around the single-door block is generally made of open mouth, one of the overwork is mobile, you can open. The threading and winding of single-door open-mouth block is convenient and simple. The threading and winding method and steps of the wire rope are as follows: 1) Lay the block flat on the ground so that the side with movable splint is facing up. 2) Turn the tackle 90° clockwise so that the tip of peach axis 6 is aligned with the peach orifice. 3) Turn over the movable splint 4) Put the wire rope into the slide.