CN201037215Y - Steel cord for engineering tyre - Google Patents
Steel cord for engineering tyre Download PDFInfo
- Publication number
- CN201037215Y CN201037215Y CNU2007200453505U CN200720045350U CN201037215Y CN 201037215 Y CN201037215 Y CN 201037215Y CN U2007200453505 U CNU2007200453505 U CN U2007200453505U CN 200720045350 U CN200720045350 U CN 200720045350U CN 201037215 Y CN201037215 Y CN 201037215Y
- Authority
- CN
- China
- Prior art keywords
- steel
- cord
- heart yearn
- wires
- strands
- 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 - Lifetime
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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)
- Tires In General (AREA)
Abstract
The utility model discloses a steel cord for an engineering tyre consisting of a cord body and outer winding steel wire wound outside the cord body; the cord body is twisted by core wire and nine steel wire strands wound outside the core wire; the core wire is twisted by three steel wires in the inner layer and nine steel wires in the outer layer concurrently; the steel wire strand is twisted by three steel wires. The utility model consists of forty steel wires and has high intensity and big carrying capacity. Point-contacts are between steel wire strands; therefore, the movable space between layers of single wires is big, strong in pliability and good in fatigue-resistance. The core wire and the steel strands are twisted concurrently and the steel strands and the cord are twisted alternately; rubber is easy to infiltrate between steel strands. The rubber can fully infiltrate into the steel cord; the utility model has strong corrosion resistance and good safety performance and prolongs the life-span of the tyre.
Description
Technical field
The utility model relates to a kind of engineering tire steel cord.
Background technology
Increase day by day along with the raw material demand, the price of non-ferrous metals such as copper increases substantially and to the great demand of coal, the great market of current extractive industry is to the demand sharp increase of novel digging bogie and equipment, these raw-material ultra-large type trucies of carrying be can't bear the heavy load, also promptly existing oblique glue engineering tyre can't satisfy the load-carrying demand, has had influence on the normal operation of mining, building and other industry.The superior function of engineering radial-type tyre will replace existing oblique glue engineering tyre, will become tire industry development new growth point, therefore engineering vehicle radial tyre has been proposed requirements at the higher level with the steel cord.
Summary of the invention
The utility model provides that a kind of bearing capacity is strong, puncture, strike-through and decay resistance and the good engineering tire steel cord of security.
The utility model has adopted following technical scheme: a kind of engineering tire steel cord, it is by the cord body and be wrapped in the external outer winding steel wire of cord and form, described cord body is compiled to twist with the fingers by heart yearn nine steel strands outer with being wrapped in heart yearn and is formed, described heart yearn is compiled in the same way to twist with the fingers with outer nine steel wires by three steel wires of internal layer and is formed, and described steel strand is compiled to twist with the fingers by three steel wires and formed.
To identical, is ordinary lay at the sth. made by twisting of the heart yearn of internal layer described in the utility model, outer heart yearn, steel strand between described steel strand, cord body, the outer winding steel wire; The lay pitch of heart yearn steel wire is 7.0～14.0mm, and the lay pitch of steel strand, cord body is respectively 10.0～15.0mm, 20.0mm～56.0mm, and the lay pitch of outer winding steel wire is 5.0mm; Steel wire diameter is 0.25mm in described heart yearn, the steel strand, and the diameter of outer winding steel wire is 0.15mm; Be the some contact between the described steel strand.
After adopting as above technical scheme, the steel cord is by heart yearn and be wrapped in nine outer steel strands of heart yearn and add a winding steel wire and compile and twist with the fingers moulding, form by 40 steel wires altogether, and the intensity height, bearing capacity is big.Be some contact between the steel strand, so transportable space is big and flexibility is strong between each layer monofilament, fatigue performance is good.Heart yearn and steel strand are twist-on-twist, and steel strand and cord body are ordinary lay, easy strike-through between the steel strand, and rubber can fully be penetrated in the steel cord, and corrosion resistance is strong, and security performance is good, has prolonged the service life of tire.
Description of drawings
Fig. 1 is the schematic cross-section of a kind of high strength steel cord of the utility model
The specific embodiment
According to shown in Figure 1, a kind of engineering tire steel cord of the utility model, it is by the cord body and be wrapped in the external outer winding steel wire of cord and form, and described cord body is by heart yearn and be wrapped in nine outer steel strands of heart yearn and compile sth. made by twisting and form.Described heart yearn is compiled to twist with the fingers with outer nine steel wires by three steel wires of internal layer and is formed, and twists with the fingers to being S/S, and the lay pitch is 7.0～14.0mm, and steel wire diameter is 0.25mm.Described steel strand is compiled to twist with the fingers for the 0.25mm steel wire by three diameters and is formed, and twists with the fingers to being S, and the lay pitch is 10.0mm～15.0mm.The sth. made by twisting of cord body to be Z to, the lay pitch is 20.0mm～56.0mm.The diameter of described outer winding steel wire is 0.15mm, twist with the fingers to be S to, the lay pitch is 5.0mm.Be the some contact between the steel strand.
Claims (5)
1. engineering tire steel cord, it is characterized in that it is by the cord body be wrapped in the external outer winding steel wire of cord and form, described cord body is compiled to twist with the fingers by heart yearn nine steel strands outer with being wrapped in heart yearn and is formed, described heart yearn is compiled in the same way to twist with the fingers with outer nine steel wires by three steel wires of internal layer and is formed, and described steel strand is compiled to twist with the fingers by three steel wires and formed.
2. engineering tire steel cord according to claim 1, the sth. made by twisting that it is characterized in that described internal layer heart yearn, outer heart yearn, steel strand are ordinary lay to identical between described steel strand, cord body, the outer winding steel wire.
3. engineering tire steel cord according to claim 1, the lay pitch that it is characterized in that the heart yearn steel wire is 7.0～14.0mm, and the lay pitch of steel strand, cord body is respectively 10.0～15.0mm, 20.0mm～56.0mm, and the lay pitch of outer winding steel wire is 5.0mm.
4. according to each described engineering tire steel cord in the claim 1 to 3, it is characterized in that steel wire diameter is 0.25mm in described heart yearn, the steel strand, the diameter of outer winding steel wire is 0.15mm.
5. according to the described engineering tire steel cord of claim 4, it is characterized in that being between the described steel strand point contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200453505U CN201037215Y (en) | 2007-09-06 | 2007-09-06 | Steel cord for engineering tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200453505U CN201037215Y (en) | 2007-09-06 | 2007-09-06 | Steel cord for engineering tyre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201037215Y true CN201037215Y (en) | 2008-03-19 |
Family
ID=39209728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200453505U Expired - Lifetime CN201037215Y (en) | 2007-09-06 | 2007-09-06 | Steel cord for engineering tyre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201037215Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051726A (en) * | 2010-08-25 | 2011-05-11 | 河南恒星科技股份有限公司 | Multilayer strand cord twisting process and core wire straightener |
| CN103485216A (en) * | 2013-08-30 | 2014-01-01 | 江苏兴达钢帘线股份有限公司 | Three-layer steel cord with 4+10+16 structure |
-
2007
- 2007-09-06 CN CNU2007200453505U patent/CN201037215Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051726A (en) * | 2010-08-25 | 2011-05-11 | 河南恒星科技股份有限公司 | Multilayer strand cord twisting process and core wire straightener |
| CN102051726B (en) * | 2010-08-25 | 2013-11-13 | 河南恒星科技股份有限公司 | Multilayer strand cord twisting process and core wire straightener |
| CN103485216A (en) * | 2013-08-30 | 2014-01-01 | 江苏兴达钢帘线股份有限公司 | Three-layer steel cord with 4+10+16 structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080319 |