Wire rope hoist wire rope end fixed security technical specifications
Specification wire rope hoist crane safety regulations according to the national standard of the Peoples Republic of China, with a fixed rope end to prevent the occurrence of security incidents to ensure the normal operation of production, especially for the following technical specifications:
A rope end is fixed parts of the examination
1, check the the removable wedge joints or rope clip deformation of the device itself, wear, whether or broken wires and corrosion crack and slide, as well as inside the device and rope end, to ensure that the fixed rope end fastening reliability.
2, check the rope end fixtures near or rope end fixtures obvious broken wires or corrosion, the wire rope truncated re-loaded to the rope end fixtures, and the length of the wire rope should meet on the hook next stop the minimum number of turns wound on the roll (2 laps) requirements.
Second, the rope end fixing method for the safety of
Consider the security situation in the electric hoist are two common methods can be used:
1, the use of the automatic clamping role of the wedges to fixed.
1) according to JB9009-1999 "electric wire rope hoist safety procedures" MD1 wire rope electric hoist fixed wire rope wedge joints should be consistent with the relevant provisions of GB/T5973 When wedge joint, just Shengtou not loose that may be, does not need to additional steel Sishengshengka.
2) Rope end piercing wedge remaining 200mm above I stay Shengtou the end of the wire should not loose splayed application valuables wire will be fastened loosely splayed parts, to prevent the wire rope loosely increasingly big lead wire rope loosely slipped to a security incident. Truss length is more than four times the diameter of the wire rope.
Install rope clips should note the following:
1) "U"-bolts should be withheld (short side) in the tail section of the wire rope, wire rope clips should be arranged alternately on a wire; distance between the rope clip for 6-7 times the diameter of the wire rope.
2) rope clips should be based on steel wire rope nominal diameter size selection, clamp wire rope Department should be smooth, flat, and there should be no glitches. Replacement rope clips deck the obvious slip friction bright traces should pay attention to.
3) wire rope clip fastening: To ensure the Rope trailing even by force, the most distant from the wedge rope clips shall first separate fastening, should also be three rope clips slowly tightening the nearest off wedges rope folder (the first rope clip) should be as close to the wedge, rope clips in use for some time, you should periodically check the state of the nut tightening.