Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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., which can solve the problems of wear, rope disorder, and extrusion of the steel rope.

Inactive Publication Date: 2011-08-17
LIAONING FUWA HEAVY IND MACHINERY
View PDF0 Cites 0 Cited by
  • 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 double-broken overall structure. The luffing reel is small in size and compact in structure. Solve the problem that the steel rope wound on it is prone to extrusion, abrasion and rope disorder

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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
Comparison scheme
Effect test

Embodiment Construction

[0012] 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.

[0013] 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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present 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 pitch of each winding drum uses a non-uniform distributed system that the two ends are compact and the middle part is loose; 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 purpose of the present invention is to provide a luffing reel with a double-connected and double-broken overall structure. The luffing reel is small in size and co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B66D1/30B66C23/36
Inventor 王克剑滕达王贞观
Owner LIAONING FUWA HEAVY IND MACHINERY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com