Drum with broken line grooves

Abstract

The invention relates to a drum with broken line grooves. The first section of a rope outlet side boss corresponds to a first oblique line groove, axial width is gradually increased to half pitch from 0, and radial thickness is the height of a layer of steel wire rope; the second section of the rope outlet side boss corresponds to a first straight line groove, axial width is half pitch, and radial thickness is the height of a layer of steel wire rope; the third section of the rope outlet side boss corresponds to a second oblique line groove, axial width is gradually increased to one pitch from half pitch, and radial thickness comprises two stepped parts; the first section of a non-rope outlet side boss corresponds to the first oblique line groove, axial width is gradually reduced to 0 from half pitch, and radial thickness is the height of a layer of steel wire rope; the second section of the non-rope outlet side boss corresponds to the second oblique line groove, axial width is gradually reduced to half pitch from one pitch, and radial thickness is gradually increased to the height of a layer of steel wire rope from 0; the third section of the non-rope outlet side boss correspondsto a second straight line groove, axial width is half pitch, and radial thickness is the height of a layer of steel wire rope. The drum with the broken line grooves makes the steel wire rope regularly wound.

Description

technical field [0001] The invention relates to a steel wire rope winding component in a hoisting mechanism and a luffing mechanism, in particular to a broken line rope groove drum. Background technique [0002] The drum group is the part of the hoisting mechanism and the luffing mechanism of the crane that winds the wire rope. The drum with the rope groove helps the wire rope to be arranged neatly and avoids the disorder of the wire rope, so as to ensure the smooth operation of the crane. [0003] The rope groove of the drum usually has two forms: spiral type and broken line type. The spiral rope groove has the advantages of easy processing and low price. It can neatly wind the first layer of steel wire rope on the whole drum. The rope groove cannot smoothly guide the wire rope from the first layer to the second layer and wind back neatly along the drum wall, and the upper layer wire rope cannot fall well into the spiral groove formed by the lower layer wire rope. There m...

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the setting of the guiding mechanism is very important. If there is no guiding mechanism, the wire rope will inevitably be severely squeezed and worn when it transitions from the lower layer to the upper layer, which will shorten the life of the wire rope, and the position of the fixed wire rope when it returns cannot be guaranteed. That is, the cross transition position of the upper and lower steel wire ropes is not fixed at the starting position of the upper steel wire rope, which may cause irregular rope arrangement

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