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Integral duplex dual-polyline variable-amplitude winding drum of caterpillar crane

The technology of a crawler crane and a double drum is applied in the direction of the crane, the hoisting device, the mechanism of the clockwork, etc., and can solve the problems of wear, wire rope extrusion, and rope disorder.

Inactive Publication Date: 2009-09-23
LIAONING FUWA HEAVY IND MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a luffing reel with a double-connected and double-broken overall structure. The steel rope wound on it is prone to extrusion, abrasion and rope disorder

Method used

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  • Integral duplex dual-polyline variable-amplitude winding drum of caterpillar crane
  • Integral duplex dual-polyline variable-amplitude winding drum of caterpillar crane
  • Integral duplex dual-polyline variable-amplitude winding drum of caterpillar crane

Examples

Experimental program
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Embodiment Construction

[0010] figure 1 The solid line in the figure shows the structure of the luffing drum, the upper part of which is the steel rope working system on the luffing mast, and the double-dotted lines on both sides are driven by synchronously driven motors Device 1, the reducer of the motor drive device 1 is placed inside its reel.

[0011] Such as Figures 1 to 4 As shown, the luffing reel of the present invention adopts an integrally cast double reel structure, that is, it is cast as a whole. The double drums are left and right symmetrically designed, bounded by the middle baffle 6, the rotation of the rope grooves is opposite to the left and right, and the rope outlets 5 are symmetrically distributed on both sides of the middle baffle 6. The rope arrangement rope groove of the luffing drum adopts a double broken line rope groove structure. Two sections of broken line rope grooves with an angle range of 60° are symmetrically arranged on the circumference of the rope groove, and eac...

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PUM

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Abstract

The invention relates to an integral duplex dual-polyline variable-amplitude winding drum for a large-tonnage (more than 150 tons) caterpillar crane arm support variable-amplitude device. The integral duplex dual-polyline variable-amplitude winding drum is an integrally casting duplex winding drum, in particular to an integrally casting duplex winding drum with groove turning directions and rope outlets symmetrically distributed at the left side and the right side of a middle baffle plate, wherein the rope outlets are positioned at both sides of the middle baffle plate, the groove turning directions are opposite left and right, grooves are all designed with dual-polyline, and the grooves have compact two-side rope starting parts, loose middle rope arrangement and a rope arrangement lug boss positioned on the middle baffle plate so as to enable wire ropes which are winded on the grooves to have uniform bearing capacity, thus the invention greatly reduces the abrasion among the wire ropes and the axial force of the middle baffle plate; and even if the wire ropes wind with multiple layers, no mutual interference, extrusion and wire rope confusion can be generated, thus the invention achieves the purpose of reducing the volume, prolonging the service life of the wire ropes, reducing the use cost and enhancing the work efficiency.

Description

1. Technical field [0001] The invention relates to an integral double-connected double-broken line luffing drum used in a luffing device of a boom frame of a crawler crane with a large tonnage (above 150 tons). 2. Background technology [0002] At present, most of the jib luffing devices of large tonnage (above 150 tons) crawler cranes are jib luffing devices composed of a single drum or two single drums with luffing ropes. The volume is large, the diameter of the steel wire rope is thick, and the drum is easy to mess up the rope, which increases the extrusion wear of the steel rope. The frequent action of the luffing device of the crawler crane directly leads to the short service life of the steel rope, the reduction of work efficiency and the increase of the use cost. 3. Contents of the invention [0003] The object of the present invention is to provide a luffing reel with a double-connected and double-broken overall structure. It solves the problems of extrusion, wea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D1/30B66C23/36
Inventor 王克剑滕达王贞观
Owner LIAONING FUWA HEAVY IND MACHINERY
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