CN202323527U

CN202323527U - Steel wire rope for tower crane

Info

Publication number: CN202323527U
Application number: CN 201120461383
Authority: CN
Inventors: 陈建豪; 薛建军
Original assignee: JIANGSU YUNYU METAL PRODUCTS CO Ltd
Current assignee: JIANGSU YUNYU METAL PRODUCTS CO Ltd
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-07-11
Anticipated expiration: 2021-11-18

Abstract

The utility model discloses a steel wire rope for a tower crane, comprising a central bundle, inner-layer bundles and an outer layer, wherein the inner-layer bundles wrap the central bundle symmetrically; the outer layer surrounds the inner-layer bundles and is formed by an outer-layer thick bundle and an outer-layer fine bundle with mutual interval; the outer-layer thick bundle is positioned in an outer gap of the two adjacent inner-layer bundles, and the outer-layer fine bundle is arranged on convex parts of the inner-layer bundles in a wrapping and twisting manner; the central bundle is a Seal type S-shaped compacted bundle; and all the inner-layer bundles, the outer-layer fine bundle and the outer-layer thick bundle are Warrington-Seal type combined compacted bundle. The steel wire rope has the characteristics of stronger extrusion resistance and impact resistance, and stronger wear resistance and large bearing load and the like.

Description

Derrick crane is used steel wire rope

Technical field

The utility model relates to a kind of lifting, handling rigging, particularly relates to a kind of crane and uses steel wire rope.

Background technology

Along with China's rapid development of economy; Every profession and trade has also proposed different instructions for uses to hoisting appliance especially steel wire rope; The domestic linear contact lay wire rope that generally uses all exists the characteristics that ABRASION RESISTANCE is bad, steel cable is harder like 18 * 7-WSC, 18 * 19S, 34 * 7 etc., though and 35W * 7 multistrand ropes such as grade are soft, ABRASION RESISTANCE is bad equally; Crush resistance is not strong, characteristics such as operating difficulties during use, bearing load are little.And steel wire rope is when installing and using, and is easy to produce the steel wire rope kink and damages phenomenon, cause steel wire rope in use the life-span not long; Safety coefficient is low, and the frequent change steel wire rope had so both increased user's operation easier; Increase use cost again, difficulty or ease satisfy the demand in market.The design's steel wire rope improves common multiply linear contact lay wire rope, has improved bearing capacity, ABRASION RESISTANCE and the resistance to shock loads ability of steel wire rope.

The utility model content

The utility model has been to overcome the defective of prior art, provides strong, the anti-extruding of a kind of ABRASION RESISTANCE, soft derrick crane to use steel wire rope.

In order to solve the problems of the technologies described above, the utility model provides following technical scheme:

Comprise central strand, internal layer thigh, skin; Said internal layer thigh wraps the sth. made by twisting central strand symmetrically; The said outer internal layer thigh that surrounds; Said skin is outer thick thigh and outer thin burst of space formation, and the thick thigh of said skin is positioned at the external series gap of adjacent two internal layer thighs, and said skin wraps the bossing of twisting with the fingers at the internal layer thigh for thin strand; Said central strand is the serpentine compacting thigh of Xi Lushi, and said internal layer thigh, outer thin strand and outer thick strand are Wa Lin and gulp down-the knockdown compacting thigh of Xi Lushi.

Said central strand comprises core wire, steel wire of internal layer and cover wire; 8 said steel wire of internal layer are line contact shape bag symmetrically and twist with the fingers core wire; Said cover wire is line contact shape bag and twists with the fingers steel wire of internal layer, and 8 said cover wires are positioned at the external series gap of adjacent two steel wire of internal layer.

Said internal layer thigh, outer thick thigh and skin include core wire, steel wire of internal layer, middle level steel wire, cover wire for thin strand, and said steel wire of internal layer is face and wraps the sth. made by twisting core wire touchingly; Said middle level steel wire between steel wire of internal layer and cover wire, said cover wire symmetrically, be face and wrap touchingly and twist with the fingers the middle level steel wire.

Said internal layer thigh includes 5 middle level crins and 5 middle level filaments with outer thin strand middle level steel wire; Every said middle level crin is the recess that face embeds adjacent 2 steel wire of internal layer touchingly, and every said middle level filament is face and wraps the bossing of twisting with the fingers steel wire of internal layer touchingly respectively.

The middle level steel wire that said skin is thick strand comprises 6 middle level crins and 6 middle level filaments; Every said middle level crin is the recess that face embeds adjacent 2 steel wire of internal layer touchingly, and every said middle level filament is face and wraps the bossing of twisting with the fingers steel wire of internal layer touchingly respectively.

Compared with prior art, the utlity model has following beneficial effect:

The design's steel wire rope adopts metal core to be wrapped with the plastic coating structure, guarantees the softness of steel wire rope, can guarantee the ABRASION RESISTANCE of steel wire rope again.Have characteristics such as stronger crush resistance, shock resistance and bearing load are big.

Description of drawings

Fig. 1 is the schematic cross-section of the utility model derrick crane with steel wire rope;

Fig. 2 is the schematic cross-section of the utility model central strand;

Fig. 3 is the schematic cross-section of the utility model internal layer thigh;

Fig. 4 is the outer thin strand schematic cross-section of the utility model;

Fig. 5 is the outer thick strand schematic cross-section of the utility model.

Mark is illustrated as among Fig. 1-4,1 central strand, 2 internal layer thighs, thick strand of 3 skins, 4 outer thin thighs.

The specific embodiment

Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.

Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; Derrick crane is used steel wire rope, comprises central strand 1, internal layer thigh 2, outer layer strand 3 and 4, is multistrand rope; Contact for line between each strand and each strand; 5 internal layer thighs 2 wrap symmetrically twists with the fingers central strand 1, outer layer strand symmetrically, be line and wrap touchingly and twist with the fingers middle level thigh 2, outer layer strand is thin strand 4 formations of thick strand of 3 and 5 skins of 5 skins of space; Thick strand 3 external series gap that is positioned at adjacent two internal layer thighs 2 of every skin, every skin wraps the boss of twisting with the fingers at every internal layer thigh for thin strand 4 symmetrically.Wherein, Central strand 1 is 1 * 17S shape compacting thigh of Xi Lushi; Internal layer thigh 2 is 5 * K26WS with outer thin strand 4, and outer thick strand 3 is 5 * K31WS, fills up the gap between the thigh with the alternate mode of thickness; Improve the effective area of steel wire rope, improve the softness of steel wire rope with " W " i.e. watt woods cooperation of gulping down the formula structure.

Further describe, central strand is made up of 17 round wires, is the serpentine compacting thigh of Xi Lushi; Comprise core wire, steel wire of internal layer and cover wire; 8 steel wire of internal layer are line contact shape bag symmetrically and are twisting with the fingers core wire, and 8 cover wires are positioned at the external series gap of adjacent two steel wire of internal layer, and cover wire is line contact shape bag and twists with the fingers the steel wire of internal layer outside; The line contact condition of steel wire is relatively stable, has the good characteristics of ABRASION RESISTANCE.

Internal layer thigh 2, outer thick strand 3 and outer thin strand 4 be " WS " promptly watt woods gulp down-the knockdown compacting thigh of Xi Lushi.Internal layer thigh 2, outer thick thigh 3 and skin include core wire, steel wire of internal layer, middle level steel wire, cover wire for thin strand 4; Wherein, Internal layer thigh 2 is 5 with outer thin strand 4 steel wire of internal layer; Internal layer thigh 2 is that 5 middle level crins and 5 middle level filaments are formed with outer thin strand 4 middle level steel wire, and internal layer thigh 2 is 10 with outer thin strand 4 cover wire, and steel wire of internal layer is face and wraps the sth. made by twisting core wire touchingly; The middle level steel wire is between steel wire of internal layer and cover wire, and wherein 5 middle level crins are the recess that face embeds adjacent 2 steel wire of internal layer touchingly, and 5 middle level filaments are face and wrap the bossing of twisting with the fingers at 5 steel wire of internal layer touchingly respectively; Cover wire symmetrically, be face and wrap touchingly and twist with the fingers the middle level.

Outer thick strand 3 steel wire of internal layer is 6, and the middle level steel wire is that 6 middle level crins and 6 middle level filaments are formed, and cover wire is 12, and steel wire of internal layer is face and wraps the sth. made by twisting core wire touchingly; The middle level steel wire is between steel wire of internal layer and cover wire, and wherein 6 middle level crins are the recess that face embeds adjacent 2 steel wire of internal layer touchingly, and 6 middle level filaments are face and wrap the bossing of twisting with the fingers at 6 steel wire of internal layer touchingly respectively; Cover wire symmetrically, be face and wrap touchingly and twist with the fingers the middle level.Wa Lin gulps down-the compacting thigh of the fabricated structure of Xi Lushi, can guarantee the softness of steel wire rope, and can guarantee the ABRASION RESISTANCE of steel wire rope again.

Adopt disposable sth. made by twisting system to form when closing rope, then adopt watt woods to gulp down the best fit of " W " formula structure between each strand, internal layer thigh 2 is identical with outer thin strand 4 radicals, and the total radical of outer layer strand is the twice of internal layer thigh 2; Each central strand, internal layer thigh, outer layer strand are rationally separated every thigh through noseplate on finished car; Through behind the pre-former; Line ball mold pressing with special is tight, eliminates the residual stress in the thigh through the post-formers of the many wheels of too much group again, has effectively reduced the construction of wire rope elongation; Make it both guarantee the anti-verticity and the flexibility of multistrand rope, have stronger ABRASION RESISTANCE, crush resistance and shock resistance, load performance again.The rupture pull force coefficient of this steel wire rope reaches 0.47, improves about 30%.Under the situation that can need not strengthen with derrick crane equipment in rope footpath, but the object that handling more weighs.

The above is merely the embodiment of explanation the utility model; Be not limited to the utility model; For a person skilled in the art; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. derrick crane is used steel wire rope; Comprise central strand, internal layer thigh, skin, it is characterized in that said internal layer thigh wraps the sth. made by twisting central strand symmetrically; The said outer internal layer thigh that surrounds; Said skin is outer thick thigh and outer thin burst of space formation, and the thick thigh of said skin is positioned at the external series gap of adjacent two internal layer thighs, and said skin wraps the bossing of twisting with the fingers at the internal layer thigh for thin strand; Said central strand is the serpentine compacting thigh of Xi Lushi, and said internal layer thigh, outer thin strand and outer thick strand are Wa Lin and gulp down-the knockdown compacting thigh of Xi Lushi.

2. derrick crane according to claim 1 is used steel wire rope; It is characterized in that: said central strand comprises core wire, steel wire of internal layer and cover wire; 8 said steel wire of internal layer are line contact shape bag symmetrically and twist with the fingers core wire; Said cover wire is line contact shape bag and twists with the fingers steel wire of internal layer, and 8 said cover wires are positioned at the external series gap of adjacent two steel wire of internal layer.

3. derrick crane according to claim 1 is used steel wire rope; It is characterized in that: said internal layer thigh, outer thick thigh and skin include core wire, steel wire of internal layer, middle level steel wire, cover wire for thin strand, and said steel wire of internal layer is face and wraps the sth. made by twisting core wire touchingly; Said middle level steel wire between steel wire of internal layer and cover wire, said cover wire symmetrically, be face and wrap touchingly and twist with the fingers the middle level steel wire.

4. derrick crane according to claim 1 is used steel wire rope; It is characterized in that: said internal layer thigh includes 5 middle level crins and 5 middle level filaments with outer thin strand middle level steel wire; Every said middle level crin is the recess that face embeds adjacent 2 steel wire of internal layer touchingly, and every said middle level filament is face and wraps the bossing of twisting with the fingers steel wire of internal layer touchingly respectively.

5. derrick crane according to claim 1 is used steel wire rope; It is characterized in that: the middle level steel wire that said skin is thick strand comprises 6 middle level crins and 6 middle level filaments; Every said middle level crin is the recess that face embeds adjacent 2 steel wire of internal layer touchingly, and every said middle level filament is face and wraps the bossing of twisting with the fingers steel wire of internal layer touchingly respectively.