CN201406513Y - Loading pedrail steel cord - Google Patents
Loading pedrail steel cord Download PDFInfo
- Publication number
- CN201406513Y CN201406513Y CN2009200372884U CN200920037288U CN201406513Y CN 201406513 Y CN201406513 Y CN 201406513Y CN 2009200372884 U CN2009200372884 U CN 2009200372884U CN 200920037288 U CN200920037288 U CN 200920037288U CN 201406513 Y CN201406513 Y CN 201406513Y
- Authority
- CN
- China
- Prior art keywords
- strand
- wire
- stranded
- steel cord
- pedrail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 2
- 238000005253 cladding Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000035807 sensation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
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- Ropes Or Cables (AREA)
Abstract
The utility model discloses a loading pedrail steel cord, which can improve elasticity, flexibility and fatigue resistance of the pedrail. The loading pedrail steel cord comprises: an inner cladding consisting of a center braided wire and at least two inner braided wires stranded on the center braided wire; and an outer cladding consisting of at least two outer braided wires stranded on the innerbraided wires. The outer cladding is a multilayer structure with at least three layers, and at least two steel wires are stranded to form each layer. The diameter of the thickest steel wire in the outer braided wires is not more than 4/5 of that of the thinnest steel wire in the inner braided wires. The pedrail made of the steel cords of the utility model has greatly improved elasticity and fatigue resistance, and the flexibility thereof is improved about 10%, and the service life of the pedrail is prolonged.
Description
Technical field
The utility model relates to steel cord for caterpillar belt, refers more particularly to the heavy type steel cord for caterpillar belt.
Background technology
Present heavy type steel cord for caterpillar belt, its structure comprises: center strand and the internal coating that is made of the six roots of sensation internal layer strand that is stranded on the strand of center and be stranded in nine external coatings that outer strand constitutes on the internal coating, described external coating is inside and outside double-layer structure, internal layer is usually by three stranded forming of steel wire, and skin is usually by nine stranded forming of steel wire; All gauges of wire in the inside and outside layer strand are all identical.By the crawler belt that this steel cord is made as skeleton, its elasticity, flexibility and fatigue resistance are relatively poor, cause the service life of crawler belt shorter; In addition, owing to do not have the slit between the outer strand, rubber can not be penetrated in the steel cord well, causes the steel cord very not tight with combining of rubber, that is: the bonding force between the rubber of steel cord and cladding steel cord is lower, has influence on the service life of crawler belt.
The utility model content
First technical problem to be solved in the utility model is: a kind of heavy type steel cord for caterpillar belt that improves crawler belt elasticity, flexibility and fatigue resistance is provided.
For solving above-mentioned first technical problem, the technical solution adopted in the utility model is: the heavy type steel cord for caterpillar belt, comprise: center strand and the internal coating that constitutes by at least two internal layer strands that are stranded on the strand of center and be stranded at least two external coatings that outer strand constitutes on the internal coating, described external coating is at least three layers a sandwich construction, and every layer by at least two stranded forming of steel wire; The diameter of thick wire is not more than 4/5ths of finer wire diameter in the internal layer strand in all outer strands.
Described center strand and internal layer strand are inside and outside double-layer structure, comprise respectively: core wire and at least two cover wires that are stranded on the core wire.
Second technical problem to be solved in the utility model is: a kind of heavy type steel cord for caterpillar belt that improves the bonding force of steel cord and rubber is provided.
For solving above-mentioned second technical problem, the technical solution adopted in the utility model is: be provided with the slit between the described outer strand.
The beneficial effects of the utility model are: the utility model is by increasing the number of plies of outer strand, reduced gauge of wire in the outer strand, the crawler belt made of steel cord thus, its elasticity, fatigue resistance have had raising by a relatively large margin, its flexibility has improved about 10%, has prolonged the service life of crawler belt; In addition, the slit between the outer strand makes that steel cord and rubber structure are tightr, and it is about 20% to make that bonding force between steel cord and the rubber has improved, and has further prolonged the service life of crawler belt.
Description of drawings
Fig. 1 is a cross-sectional structure schematic diagram of the present utility model;
Among the figure: 1, center strand, 11, core wire, 12, cover wire, 2, the internal layer strand, 21, core wire, 22, cover wire, 3, outer strand, 31, steel wire of internal layer, 32, the middle level steel wire, 33, cover wire.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As shown in Figure 1, heavy type steel cord for caterpillar belt described in the utility model, comprise: center strand 1 and the internal coating that constitutes by the six roots of sensation internal layer strand 2 that is stranded on the center strand 1, and the external coatings that are stranded in eight outer strand 3 formations on the internal coating, in described center strand 1 and internal layer strand 2 are, outer double-layer structure, wherein, center strand 1 comprises: thicker core wire 11 and be stranded in six roots of sensation cover wire 12 on this root core wire 11, and internal layer strand 2 comprises: a core wire 21 and be stranded in cover wire 22 on this root core wire 21; External coating 3 is a three-decker, and wherein, internal layer is by three steel wire of internal layer, 31 stranded forming, and the middle level is by nine middle level steel wires, 32 stranded forming, and is outer by 15 cover wires, 33 stranded forming; In all outer strands 3, in, in all identical with cover wire 31,32 with 33 diameter, in all internal layer strands 2, inside and outside layer steel wire 21 is all identical with 22 diameter, and in the outer strand 3 interior, in and the diameter of cover wire 31,32 and 33 all be not more than 4/5ths of core wire 21 in the internal layer strand 2 and cover wire 22 diameters; Be provided with the slit that is used to increase with the bonding force of rubber between the described outer strand 3.
Claims (3)
1. heavy type steel cord for caterpillar belt, comprise: center strand and the internal coating that constitutes by at least two internal layer strands that are stranded on the strand of center and be stranded at least two external coatings that outer strand constitutes on the internal coating, it is characterized in that: described external coating is at least three layers a sandwich construction, and every layer by at least two stranded forming of steel wire; The diameter of thick wire is not more than 4/5ths of finer wire diameter in the internal layer strand in all outer strands.
2. steel cord for caterpillar belt as claimed in claim 1 is characterized in that: described center strand and internal layer strand are inside and outside double-layer structure, comprise respectively: core wire and at least two cover wires that are stranded on the core wire.
3. steel cord for caterpillar belt as claimed in claim 1 or 2 is characterized in that: be provided with the slit between the described outer strand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200372884U CN201406513Y (en) | 2009-02-23 | 2009-02-23 | Loading pedrail steel cord |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200372884U CN201406513Y (en) | 2009-02-23 | 2009-02-23 | Loading pedrail steel cord |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201406513Y true CN201406513Y (en) | 2010-02-17 |
Family
ID=41677445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200372884U Expired - Fee Related CN201406513Y (en) | 2009-02-23 | 2009-02-23 | Loading pedrail steel cord |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201406513Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011116493A1 (en) * | 2010-03-23 | 2011-09-29 | Nv Bekaert Sa | Open off-the-road cord with preformed filaments |
| CN102812177A (en) * | 2010-03-23 | 2012-12-05 | 贝卡尔特公司 | Open off-the-road cord with preformed filaments |
-
2009
- 2009-02-23 CN CN2009200372884U patent/CN201406513Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011116493A1 (en) * | 2010-03-23 | 2011-09-29 | Nv Bekaert Sa | Open off-the-road cord with preformed filaments |
| CN102812177A (en) * | 2010-03-23 | 2012-12-05 | 贝卡尔特公司 | Open off-the-road cord with preformed filaments |
| CN102812177B (en) * | 2010-03-23 | 2016-06-08 | 贝卡尔特公司 | There is the open type off-the-highway tire steel cable of preformed wires |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20170223 |