Durable cable body wound with spiral bar adhesive tapes and manufacturing method of cable body

A tendon tape and durability technology, applied in the field of anti-wind and rain-induced vibration cable body and its production, can solve the problems of cable repair failure, cable body sheath cracking, sheath light aging, etc., to achieve good wind and rain resistance Exciting vibration, improving service life, and good surface quality

CN102995559AActive Publication Date: 2013-03-27LIUZHOU OVM MASCH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-03-27

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Abstract

The invention discloses a durable cable body wound with spiral bar adhesive tapes. A manufacturing method of the durable cable body comprises the following steps of: winding a steel wire bundle into a bundle by a wrapping tape, and carrying out hot extrusion on high-density polyethylene to form a high-density polyethylene sheath; fitting a layer of spiral bar adhesive tapes on the exterior of the high-density polyethylene sheath in a winding mode, wherein the spiral bar adhesive tapes comprise an overlapped single-layer spiral bar adhesive tape and a non-overlapped single-layer spiral bar adhesive tape, a plurality of corresponding convex-concave grooves are respectively formed in the upper end surface and the lower end surface of the overlapped single-layer spiral bar adhesive tape, and a parallel bar is formed on the edge of the non-overlapped single-layer spiral bar adhesive tape; and pasting or calendering a PVE (polyvinyl ether) fluorination membrane with a durable function on the overlapped single-layer spiral bar adhesive tape or the non-overlapped single-layer spiral bar adhesive tape so as to form an overlapped or non-overlapped composite spiral bar adhesive tape. According the invention, the polyethylene sheath is prevented from being directly exposed to the atmospheric environment, so that the service life of the cable body is improved, and the cable body also has a favorable wind-rain induced vibration prevention capability; the manufacturing method is simple and rapid; and the spiral bar adhesive tape is suitable for not only novel cable bodies, but also the maintenance of the existing bridge inhaul cables.
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Description

technical field

[0001] The invention relates to a drag cable and a manufacturing method thereof, in particular to a wind and rain-induced vibration-resistant drag cable body and a manufacturing method thereof, which can improve the service life of the cable body. Background technique

[0002] The protection of the outer layer of the finished parallel steel wire cable is generally realized by hot-extruded high-density polyethylene. At the same time, in order to solve the phenomenon of wind and rain-induced vibration of the cable body during operation, the surface is further embossed or wound with spiral bars. At present, the cable outer sheath of this structure still has the following problems during use: the polyethylene sheath is directly exposed to the atmosphere, and the long-term and continuous effects of tensile stress, sunshine, rain and other corrosive gases will It causes severe photoaging, damp heat aging and chemical aging damage to the sheath, which leads to the c...

Examples

Embodiment 1

[0053] Embodiment 1: A durable cable body made of a single-layer PE cable body wound with a spiral rib tape.

[0054] Such as Figure 1-1~Figure 1-2 As shown, the durable cable body of the wound spiral rib tape includes a steel wire bundle 1, a winding tape 2 and a high-density polyethylene sheath 3, and after the steel wire bundle 1 is wrapped into a bundle by the winding tape 2, the high-density polyethylene Ethylene forms a high-density polyethylene sheath 3, and outside the high-density polyethylene sheath 3 one A spiral-rib adhesive tape 5 laminated by spiral winding; the surface of the spiral-rib adhesive tape 5 has two parallel ribs 501 .

Embodiment 2

[0055] Embodiment 2: a durable cable body with double-layer PE cable body wound with spiral rib tape.

[0056] Such as Figure 2-1~Figure 2-2 As shown, the durable cable body of the double-layer PE cable body wrapped with a spiral rib tape includes a steel wire bundle 1, a winding tape 2 and a high-density polyethylene sheath, and the steel wire bundle 1 is wrapped into a bundle by the winding tape 2 , heat-extruded high-density polyethylene to form an inner layer of high-density polyethylene sheath 3, and then heat-extruded high-density polyethylene to form an outer layer of high-density polyethylene sheath 4 outside the inner layer of high-density polyethylene sheath 3, There is a layer of spiral rib tape 5 attached by spiral winding outside the outer high-density polyethylene sheath 4; the surface of the spiral rib tape 5 has two raised parallel ribs 501.

[0057] In embodiment one and embodiment two, described spiral rib adhesive tape 5 can be single-layer spiral rib adhe...

Embodiment 3

[0062] Embodiment three: a method for manufacturing a durable cable body wound with a spiral rib tape, there are two methods for making the cable body:

[0063] The first method is: the durable cable body wrapped with spiral rib tape is completed in the cable body manufacturer. Density polyethylene sheath, and then a layer of lap-joint spiral rib tape is pasted on the outside of the high-density polyethylene sheath of the cable body by spiral winding. The lap-joint spiral rib tape includes a lap-joint single-layer spiral rib Adhesive tape 51a is either pasted or calendered a layer of protective film on the lap-joint single-layer spiral-rib adhesive tape 51a or a lap-joint composite spiral-rib adhesive tape 53a formed by spraying or brushing a layer of protective layer 52 .

[0064] The second method is: the durable cable body wrapped with spiral rib tape is completed at the construction site;

[0065] The specific method is: first wrap the steel wire bundles of the cable stay...