The selection of tower crane wire rope shall meet the following requirements:
1, generally choose to use tower crane accessories to cross the wire rope, so that it will not be loosened when lifting goods, and it must have a quality certificate.
2, lifting hot or molten metal wire rope application of asbestos core high temperature wire rope.
3, hoisting and luffing mechanism shall not use braided wire rope. When other wire ropes need to be extended, it must be ensured that the joint connection strength is not less than 90% of the breaking tension of the wire rope, and it is not allowed to enter the drum through the pulley.
Extended data:
Function and requirement of lubricant for tower crane wire rope;
1, wider application temperature and better adhesion.
2. Adhesion to the wire rope will not be easily erased, and the lubrication effect will not be affected when the temperature changes. It can be firmly attached to the surface of steel wire rope at higher temperature (< 60℃), and will not melt in the sun, be thrown off by the moving steel wire rope, or be lost or dripped at high temperature. It does not crack or fall off at low temperature (below -30℃).
There are various types and models of tower crane elevator accessories. The accessories commonly used for tower cranes include standard joints, anchor bolts, high-strength bolts, wire ropes, hooks, plum blossom pads, etc.
The types of wire ropes are phosphating coated wire ropes, galvanized wire ropes, stainless steel wire ropes and smooth wire ropes. According to the use conditions and requirements, the winch wire rope will pass through the cab to the tower cap pulley block and finally be fixed on the crane head. The length of all ropes and the distance between two pulley blocks shall be determined by calculation.
When using wire rope, regular inspection shall be carried out according to relevant regulations, and records shall be made. The inspection contents include: wire rope wear, wire breakage, corrosion, lubrication, deformation, connection parts or terminal fastening parts, and other abnormal phenomena. The wire rope slides on pulleys, drums, reels and other parts. After the wire rope is rubbed, the parts are easy to grind out grooves, which accelerates the wear of the wire rope.
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