CN202730375U - Steel cord used for pneumatic tyre belted layer - Google Patents
Steel cord used for pneumatic tyre belted layer Download PDFInfo
- Publication number
- CN202730375U CN202730375U CN201220379897XU CN201220379897U CN202730375U CN 202730375 U CN202730375 U CN 202730375U CN 201220379897X U CN201220379897X U CN 201220379897XU CN 201220379897 U CN201220379897 U CN 201220379897U CN 202730375 U CN202730375 U CN 202730375U
- Authority
- CN
- China
- Prior art keywords
- heart yearn
- steel cord
- internal layer
- core wires
- layer core
- 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
- D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
Abstract
The utility model discloses a steel cord used for a pneumatic tyre belted layer. The four-strand steel cord comprises two inner layer core wires and two outer layer core wires, wherein the two outer layer core wires are non-uniformly distributed on the periphery of the inner layer core wires and are twisted around the inner layer core wires so as to form a steel cord with a triangular cross section; the inner layer core wires are distributed in a rectangle shape; and the diameter of both the inner layer core wires and the outer layer core wires is 0.35mm. The steel cord has high strength, excellent strike-through performance, high corrosion resistance, penetration resistance, and capability of reducing the weight of the tyre and saving the manufacture cost of the tyre.
Description
Technical field
The utility model relates to the steel cord that band bundled layer uses in the pneumatic tire, relates in particular to the super-strength steel cord that uses in a kind of underloading truck and the car.
Background technology
Use the 3+6 steel cord in underloading truck and the car at present, formed by three heart yearns of internal layer and outer six roots of sensation heart yearn, six roots of sensation heart yearn dense arrangement is around the internal layer heart yearn, almost very close to each other between internal layer heart yearn and the outer heart yearn, so that rubber is difficult to penetrate in the steel cord, cause that the bonding force of steel cord and rubber descends.And because rubber can not fully be penetrated in the steel cord, in the monofilament of steel cord the space may be arranged, and water conservancy diversion moisture is played in these spaces or salt penetration advances in the steel cord, and when tire during by deflection repeatedly, the steel cord may accelerated corrosion, the service life of reducing tire.Chinese patent CN201120291355.2 discloses seven strands of steel cords that band bundled layer uses in a kind of pneumatic tire, it comprises internal layer heart yearn group and outer heart yearn group, internal layer heart yearn group is compiled to twist with the fingers by two internal layer heart yearns and is formed, the arrangement of being rectangle of two internal layer heart yearns, outer heart yearn group is compiled to twist with the fingers by five outer heart yearns and is formed, five outer heart yearns be distributed in two internal layer heart yearns around do to compile in the same way that to twist with the fingers Formation cross-section be oval-shaped steel cord, have equally above-mentioned technological deficiency.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides that a kind of intensity is high, the strike-through performance is good, the corrosion resistance ability strong, puncture-resistant, can alleviate tire weight, save the pneumatic tire band bundled layer steel cord of the manufacturing cost of tire.
The utility model is achieved by the following technical solution:
Pneumatic tire band bundled layer steel cord, it comprises two internal layer heart yearns and two outer heart yearns, inhomogeneous being arranged in around the internal layer heart yearn and around the internal layer heart yearn of described two outer heart yearns compiled sth. made by twisting, Formation cross-section is leg-of-mutton steel cord, the arrangement of being rectangle of described internal layer heart yearn, described internal layer heart yearn and outer heart yearn gauge of wire all are 0.35mm.
Described outer heart yearn centers on the sth. made by twisting of internal layer heart yearn to being the S sth. made by twisting, two non-twist distances of steel wire of described internal layer heart yearn.
It is 18.0mm that described outer heart yearn is compiled the lay pitch of twisting with the fingers around the internal layer heart yearn.
The utility model compared with prior art has following beneficial effect:
The utility model internal layer heart yearn and outer heart yearn all adopt the same diameter steel wire, filament diameter 0.35mm, two outer heart yearns not exclusively wrap up the internal layer heart yearn, leave more gap, be convenient to the infiltration of rubber, be conducive to improve the bonding force between rubber and the steel cord, thereby avoid causing corrosion because moisture enters into steel cord inside; It also has the preferably superior function such as impact resistance, puncture-resistant; Outer heart yearn adopts two on monofilament, can alleviate tire weight, saves the manufacturing cost of tire, increases economic efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Sequence number among the figure: 1, internal layer heart yearn, 2, outer heart yearn.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
According to shown in Figure 1, a kind of pneumatic tire band bundled layer steel cord of the utility model, it comprises two internal layer heart yearns 1 and two outer heart yearns 2, described two outer heart yearn 2 inhomogeneous being arranged in around the internal layer heart yearn 1 and around internal layer heart yearn 1 are compiled sth. made by twisting, sth. made by twisting is to twisting with the fingers for S, the lay pitch is 18.0mm, and Formation cross-section is leg-of-mutton steel cord; The arrangement of being rectangle of described internal layer heart yearn 1, two non-twist distances of steel wire of described internal layer heart yearn 1; The steel wire diameter of described internal layer heart yearn 1 and outer heart yearn 2 is 0.35mm.
Embodiment is just for the ease of understanding the technical solution of the utility model; do not consist of the restriction to the utility model protection domain; every interior any simple modification, equivalent variations and modification of perhaps according to technical spirit of the present utility model above scheme being done that does not break away from technical solutions of the utility model all still belongs within the utility model protection domain.
Claims (3)
1. pneumatic tire band bundled layer steel cord, it is characterized in that: it comprises two internal layer heart yearn ⑴ and two outer heart yearn ⑵, inhomogeneous being arranged in around the internal layer heart yearn ⑴ and around internal layer heart yearn ⑴ of described two outer heart yearn ⑵ compiled sth. made by twisting, Formation cross-section is leg-of-mutton steel cord, the described internal layer heart yearn ⑴ arrangement of being rectangle, described internal layer heart yearn ⑴ and outer heart yearn ⑵ gauge of wire all are 0.35mm.
2. pneumatic tire band bundled layer steel cord according to claim 1 is characterized in that: described outer heart yearn ⑵ is around the sth. made by twisting of internal layer heart yearn ⑴ to being S sth. made by twisting, two non-twist distances of steel wire of described internal layer heart yearn ⑴.
3. pneumatic tire band bundled layer steel cord according to claim 1 and 2 is characterized in that: it is 18.0mm that described outer heart yearn ⑵ compiles the lay pitch of twisting with the fingers around internal layer heart yearn ⑴.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220379897XU CN202730375U (en) | 2012-08-02 | 2012-08-02 | Steel cord used for pneumatic tyre belted layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220379897XU CN202730375U (en) | 2012-08-02 | 2012-08-02 | Steel cord used for pneumatic tyre belted layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202730375U true CN202730375U (en) | 2013-02-13 |
Family
ID=47656091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220379897XU Expired - Lifetime CN202730375U (en) | 2012-08-02 | 2012-08-02 | Steel cord used for pneumatic tyre belted layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202730375U (en) |
-
2012
- 2012-08-02 CN CN201220379897XU patent/CN202730375U/en not_active Expired - Lifetime
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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: 20130213 |