CN201406514Y

CN201406514Y - Pedrail steel cord

Info

Publication number: CN201406514Y
Application number: CN2009200372899U
Authority: CN
Inventors: 蒋永华; 顾平; 成建春
Original assignee: Zhangjiagang City Shazhou Steel Wire Cable Co Ltd
Current assignee: Zhangjiagang City Shazhou Steel Wire Cable Co Ltd
Priority date: 2009-02-23
Filing date: 2009-02-23
Publication date: 2010-02-17
Anticipated expiration: 2019-02-23

Abstract

The utility model discloses a pedrail steel cord, which can improve fatigue resistance of the pedrail. The pedrail steel cord comprises a center braided wire and a cladding consisting of at least twoouter braided wires stranded on the center braided wire. The center braided wire and the outer braided wires are multilayer structures with at least two layers. At least two steel wires are stranded to form each layer. At least two steel wires are stranded to form each inner layer of the center braided wire and the outer braided wires of the utility model, so that the pedrail made of the steel cords has greatly improved fatigue resistance. Moreover, at least two steel wires are stranded to form each inner layer, so that the pedrail cannot be easily broken of and the service life of the pedrailcan be greatly prolonged.

Description

A kind of steel cord for caterpillar belt

Technical field

The utility model relates to a kind of steel cord, refers more particularly to a kind of steel cord for caterpillar belt.

Background technology

Present steel cord for caterpillar belt, as shown in Figure 1, its structure comprises: center strand 1 and the clad that is made of the outer strand 2 of the six roots of sensation that is stranded on the center strand 1, center strand 1 has identical structure with outer strand 2, is made of with the six roots of

sensation cover wire

12 and 22 that is stranded on this

root core wire

11 and 21

core wire

11 and 21 respectively.The crawler belt of making as skeleton by this steel cord, the poor-performing of its antifatigue, after long-term the use, core wire in the center strand of steel cord can rupture, the core wire of fracture can puncture the rubber layer that is coated on steel cord outside, not only can have influence on the service life of crawler belt, and exposed core wire outside also can have influence on the normal operation of the relevant devices such as harvester that this crawler belt is installed.In addition, because the surperficial smoother of this steel cord causes itself and rubber adhesion to get and is not very tight, influence the service life of crawler belt.

The utility model content

A technical problem to be solved in the utility model is: a kind of steel cord for caterpillar belt that improves the crawler belt fatigue resistance is provided.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of steel cord for caterpillar belt, comprise: center strand and by the clad that constitutes by at least two outer strands that is stranded on the strand of center, described center strand and outer strand are two-layer at least sandwich construction, and every layer by at least two stranded forming of steel wire.

Described center strand and outer strand are inside and outside double-layer structure, and inside and outside layer is by at least two stranded forming of steel wire.

Described center strand and outer strand are interior, domestic and abroad three-decker, internal layer, middle level and outer by at least two stranded forming of steel wire.

Another technical problem to be solved in the utility model is: a kind of steel cord for caterpillar belt is provided, and it is tightr to make that itself and rubber adhesion get.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: also be wound with outer around steel wire on the described outer strand.

The beneficial effects of the utility model are: the internal layer of the utility model center strand and outer strand is by at least two stranded forming of steel wire, the crawler belt made of steel cord thus, its anti-fatigue performance has obtained bigger lifting, and internal layer is by at least two stranded forming of steel wire, be not easy fracture, prolonged the service life of crawler belt greatly.In addition, the steel cord that is wound with outer wrapping wire can be more closely bonding with rubber, can further improve the service life of crawler belt.

Description of drawings

Fig. 1 is the structural representation of the steel cord for caterpillar belt cross section described in the background technology;

Among the figure: 1, center strand, 11, core wire, 12, cover wire, 2, outer strand, 21, core wire, 22, cover wire.

Fig. 2 is the cross-sectional structure schematic diagram of first embodiment of the utility model;

Fig. 3 is the cross-sectional structure schematic diagram of second embodiment of the utility model;

Fig. 4 is the cross-sectional structure schematic diagram of the 3rd embodiment of the utility model;

Fig. 5 is the cross-sectional structure schematic diagram of the 4th embodiment of the utility model;

Among Fig. 2 to Fig. 5: 1, center strand, 11, steel wire of internal layer, 12, the middle level steel wire, 13, cover wire, 2, outer strand, 21, steel wire of internal layer, 22, the middle level steel wire, 23, cover wire, 3, outward around steel wire.

The specific embodiment

Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.

Embodiment one:

As shown in Figure 2, steel cord for caterpillar belt described in the utility model, comprise: center strand 1 and the clad that constitutes by the outer strand 2 of the six roots of sensation that is stranded on the center strand 1, described center strand 1 and outer strand 2 are inside and outside double-layer structure, wherein, center strand 1 comprises: the internal layer that is made of three steel wire of internal layer that twist together 11 and nine skins that cover wire 13 constitutes on stranded this internal layer, outer strand 2 comprises: the internal layer that is made of three steel wire of internal layer that twist together 21 and nine skins that cover wire 23 constitutes on stranded this internal layer.

Embodiment two:

As shown in Figure 3, steel cord for caterpillar belt described in the utility model, comprise: center strand 1 and the clad that constitutes by the outer strand 2 of the six roots of sensation that is stranded on the center strand 1, in described center strand 1 and outer strand 2 are, outer double-layer structure, wherein, center strand 1 comprises: the internal layer that is made of three steel wire of internal layer that twist together 11 and nine skins that cover wire 13 constitutes on stranded this internal layer, outer strand 2 comprises: the internal layer that constitutes by three steel wire of internal layer that twist together 21 and nine skins that cover wire 23 constitutes on stranded this internal layer, outside on outer strand 2, also being wound with around steel wire 3.

Embodiment three:

As shown in Figure 4, steel cord for caterpillar belt described in the utility model, comprise: center strand 1 and the clad that constitutes by the outer strand 2 of the six roots of sensation that is stranded on the center strand 1, in described center strand 1 and outer strand 2 are, in, outer three-decker, wherein, center strand 1 comprises: the middle level that the internal layer that is made of three steel wire of internal layer that twist together 11 and nine middle level steel wires 12 on stranded this internal layer constitute and be stranded in 15 skins that cover wire 13 constitutes on this middle level, outer strand 2 comprises: the middle level that the internal layer that is made of three steel wire of internal layer that twist together 21 and nine middle level steel wires 22 on stranded this internal layer constitute and be stranded in 15 skins that cover wire 23 constitutes on this middle level.

Embodiment four:

As shown in Figure 5, steel cord for caterpillar belt described in the utility model, comprise: center strand 1 and the clad that constitutes by the outer strand 2 of the six roots of sensation that is stranded on the center strand 1, in described center strand 1 and outer strand 2 are, in, outer three-decker, wherein, center strand 1 comprises: the middle level that the internal layer that is made of three steel wire of internal layer that twist together 11 and nine middle level steel wires 12 on stranded this internal layer constitute and be stranded in 15 skins that cover wire 13 constitutes on this middle level, outer strand 2 comprises: the middle level that the internal layer that is made of three steel wire of internal layer that twist together 21 and nine middle level steel wires 22 on stranded this internal layer constitute and be stranded in 15 skins that cover wire 23 constitutes on this middle level, outside on outer strand 2, also being wound with around steel wire 3.

Claims

1. steel cord for caterpillar belt, comprise: center strand and by the clad that constitutes by at least two outer strands that is stranded on the strand of center, it is characterized in that: described center strand and outer strand are two-layer at least sandwich construction, and every layer by at least two stranded forming of steel wire.

2. steel cord as claimed in claim 1 is characterized in that: described center strand and outer strand are inside and outside double-layer structure, and inside and outside layer is by at least two stranded forming of steel wire.

3. steel cord as claimed in claim 1 is characterized in that: described center strand and outer strand are interior, domestic and abroad three-decker, internal layer, middle level and outer by at least two stranded forming of steel wire.

4. as claim 2 or 3 described steel cords, it is characterized in that: also be wound with outer on the described outer strand around steel wire.