CN214928666U - Braided composite material reinforcing cable and composite material spoke - Google Patents

Abstract

The utility model provides a weave combined material and strengthen cable and combined material spoke, its is strengthened the cable and is included core and yarn. The yarns surround the core and are woven into yarn cladding layers around and around the core in a staggered weave, with at least one layer of the yarn cladding layers. The utility model discloses weave around the core with the yarn, adopt the mode of crisscross weaving, yarn cover core forms yarn covering layer, and the yarn that the intertwine formed closely laminates in week portion of core, can not loosen when a yarn disconnection, and the yarn covering layer does not loosen and scatters, can also continue long-time use to the reliability and the life of product have been improved.

Description

Braided composite material reinforcing cable and composite material spoke

Technical Field

The utility model relates to a weave combined material strengthening cable and combined material spoke.

Background

In the history of human development, the use of ropes provides various conveniences for human life, and the history of the ropes is nearly five thousand years. Historically, ropes have dominated natural fibers for a long time, and synthetic fiber rope products have been used for no more than seventy years.

A multi-fiber hybrid braided composite material reinforcing cable such as carbon fiber is formed by mixing and braiding multiple fiber tows according to a certain proportion to form a long-strip-shaped 3D braided yarn bundle, and then completing base material resin infiltration and high-temperature curing through a pultrusion process according to special requirements of cable products in various industries. The reinforcing cable product can be widely used in various industries, and can be used for products such as a bridge diagonal cable of national infrastructure, a national power grid power transmission cable core, an oil extraction sucker rod, a bicycle wheel spoke and the like.

There are a number of synthetic fiber rope-like products on the market today. However, the weaving mode is simple and traditional, the overall strength is not high, and particularly, after part of yarns are broken, the rest yarns are easy to scatter, so that the reliability of the rest parts is greatly reduced, and the utilization rate is reduced. The use scenes of the rope are many, and the situation of partial yarn breakage is not few, so the existing artificial fiber rope products need to be further improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the too simple tradition of present product weaving mode, its bulk strength is not high, the defect that the reliability is low, the utility model provides a weave combined material strengthening cable and combined material spoke.

In a first aspect, a braided composite reinforcing cord is provided that includes a core and a yarn.

The yarns surround the core and are woven into yarn cladding layers around and around the core in a staggered weave, with at least one layer of the yarn cladding layers.

The utility model discloses weave around the core with the yarn, adopt the mode of crisscross weaving, yarn cover core forms yarn covering layer, and the yarn that the intertwine formed closely laminates in week portion of core, can not loosen when a yarn disconnection, and the yarn covering layer does not loosen and scatters, can also continue long-time use to the reliability and the life of product have been improved.

Furthermore, the yarn rotation staggered angle of the yarn coating layer is 70-110 degrees, and the angle refers to the included angle of tangents of the two yarns at the rotation staggered point of the two yarns.

Furthermore, the yarn rotating directions of the adjacent yarn coating layers are opposite, so that the torsion of the yarn coating layers on the core can be reduced, and further the deformation can be reduced.

Further, the staggered weaving manner is similar to the manner of weaving a hemp rope: each yarn coating comprises eight strands of said yarn. Before weaving, eight strands of the yarns surround the core, and after the yarns are pairwise rotated and staggered to form a yarn winding section, the yarns immediately diverge and extend outwards, and diverge after being rotated and staggered again with the yarns extending from the adjacent yarn winding section.

Furthermore, in the same layer of strand yarn coating layer, adjacent yarns are made of different or same materials. The yarn of different materials has different performance, and the advantage is different, and through the yarn that contains different materials, can be in the same place the advantage integration of the yarn of different materials, the wholeness ability of product is more superior.

Further, the yarns are made of different fibers, such as glass fibers or carbon fibers.

In a second aspect, a composite spoke is provided, which uses the braided composite reinforcing cable of the first aspect, wherein the core is a composite rod, and the tensile property of the composite rod is improved by braiding yarns on the periphery of the composite rod.

Further, the composite material rod is round or flat, and the selection is according to the actual use requirement.

Further, the composite material rod is a fiber material rod.

The utility model has the advantages that:

1. the yarn is woven around the core, and a staggered weaving mode is adopted, so that the yarn covers the core to form a yarn covering layer, the yarn covering layer is not easy to scatter, the integrity is strong, and the integral mechanical property is improved;

2. the yarn is combined with the core, so that the performance of each aspect of the yarn is stronger than that of a single core, and the service life of the product is prolonged;

3. the yarn winding core of two adjacent layers of yarn coating layers is opposite in direction, so that the rotating torque is offset, the parallelism of planes on two sides of the flat spoke is guaranteed in appearance, and compared with a non-woven spoke, the anti-twisting performance is higher.

Drawings

FIG. 1 is a schematic diagram of the structure of a braided composite reinforcing cord of an embodiment (cross-sectional view, double yarn coating);

FIG. 2 is a schematic diagram of a woven composite reinforcing cord according to one embodiment (front view, using different materials);

FIG. 3 is a schematic diagram of the structure of a braided composite reinforcing cord of the second embodiment (cross-sectional view, single yarn coating);

FIG. 4 is a graph showing the change in tensile length of a test piece with respect to load;

FIG. 5 is a schematic view of a bicycle wheel;

the labels in the figures are: yarn 1, first yarn covering 11, second yarn covering 12, core 2.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The first embodiment is as follows:

a braided composite reinforcing cord comprises a yarn 1 and a core 2.

Referring to fig. 1, the yarns are woven around the core and around and over the core in a staggered weave to form a yarn covering.

In this embodiment, two yarn coating layers are provided on the periphery of the core 2, and the rotation directions of the yarns 1 wound around the core 2 are opposite to each other, so that the rotation torque is offset. Referring to fig. 2, a first yarn covering layer 11 and a second yarn covering layer 12 are adjacent from inside to outside, the ends of the two yarn covering layers are flush, and in fig. 2, for the purpose of clearly illustrating the two layers which are overlapped, the ends of the yarn groups of the two yarn covering layers are cut off in sequence and are illustrated in a step shape.

Referring to fig. 1, the yarn covering layer includes eight yarns 1 uniformly distributed on the periphery of the core, and the yarns 1 are diverged to extend outward immediately after being twisted two by two to form a yarn 1 winding section, and diverged after being twisted and further diverged with the yarns 1 extending from the adjacent yarn 1 winding section. In other embodiments, other numbers of yarns 1 may be used for weaving.

In this embodiment, the angle of the mutually rotating and interlacing yarns of the yarn covering layer is 70 °, and in other embodiments, the weaving speed is different according to different requirements, and may be other angles.

The utility model discloses 1 inseparable laminatings of yarn that intertwine formed are at the week portion of core 2, can not loosen, and when 1 disconnection of a yarn, the yarn coating does not loosen, can also continue long-time the use to the reliability and the life of product have been improved.

For the comprehensive properties that improves the product, same yarn coating adopts yarn 1 of two kinds of different materials, is glass fiber or carbon fiber respectively, as shown in fig. 2, the shadow of taking is the carbon fiber material, and another is the glass fiber of white, and yarn 1 of different materials has different performance, and the advantage is different, adopts yarn 1 of different materials at same yarn coating, can be in the same place with the integration of the advantage of yarn 1 of different materials, and the wholeness ability of product is more superior.

Example two:

the difference from the first embodiment is that in this embodiment, the yarn covering layer has only one layer, see fig. 3.

Example three:

the carbon fiber spoke adopts the braided composite material reinforcing cable provided by the first embodiment, wherein the core 2 is a carbon fiber rod, and the tensile property of the carbon fiber rod is improved by braiding the yarns 1 on the periphery of the carbon fiber rod. In this embodiment, the carbon fiber rod is flat spoke, and through 1 rotation direction of yarn of adjacent two-layer yarn coating opposite, make rotation torsion offset, guarantee the planar depth of parallelism in flat spoke both sides from the appearance.

In other embodiments, the core 2 is made of other composite materials, and composite spokes, such as fiberglass spokes, are made.

Experiment one: the tensile damage comparison experiment is carried out to the woven flat spoke with the large angle style obtained in the embodiment and the metal spoke products with the same specification of other brands on the market, and a tensile damage comparison experiment table 1 is obtained:

tensile failure comparative experiment table 1

TABLE 1

Can find out through above experiment, adopt the utility model provides a product of technical scheme preparation has better stretch-proofing destruction performance, and light in weight.

Experiment two: the comparison experiment of extension and stretching is carried out to the woven flat spoke obtained in the embodiment and other metal spoke products with the same brand and specification on the market, and a recording table 2 is obtained:

the experimental conditions are as follows:

punctuation distance: 50 mm; experiment temperature: 25 ℃; width and thickness of test piece: 20 x 20 mm; area of the test piece: 400mm ^ 2; young's modulus: 10.497kgf/mm ^ 2; total energy: 2J;

comparative tensile test Table 2

TABLE 2

Through the above experimental table in combination with fig. 4, wherein a represents the sample of the present invention, and B represents the metal spoke, the product manufactured by the technical scheme provided by the present invention has better tensile failure resistance, and is used for the bicycle wheel, as shown in fig. 5, when the tensile failure resistance of the spoke adopted on the wheel is better, the deformation of the spoke at the contact end between the wheel and the ground is smaller during the riding process, and in this case, the riding process is easier for the rider.

Example four:

the carbon fiber spoke adopts the braided composite material reinforcing cable provided by the second embodiment, wherein the core 2 is a carbon fiber rod, and the tensile property of the carbon fiber rod is improved by braiding the yarns 1 on the periphery of the carbon fiber rod. The carbon fiber rod is a round spoke, only one layer of yarn coating layer is arranged outside the round spoke, and the torsion resistance of the round spoke is improved through the yarn coating layer.

Example five:

a carbon fiber spoke manufacturing and processing method takes a carbon fiber rod as a core 2, and adopts a pultrusion process to form the carbon fiber spoke provided by the third embodiment after a yarn covering layer is woven on the periphery of the core 2.

The method comprises the following specific steps:

firstly, yarns surround a core, surround and wrap the core in a staggered weaving mode and are woven into a yarn wrapping layer to form a primary product;

dipping glue, namely pre-dipping the primary product in resin;

step three, pultrusion curing, namely forming the dipped primary product through an extrusion die, and curing to form a woven piece;

cutting, namely cutting off the braided part according to the design length requirement of the spokes;

step five, surface treatment, namely grinding the surface of the braided part;

sleeving metal parts on two ends of the weaving part;

step seven, wrapping the taper yarns;

step eight, solidifying the taper;

step nine, grinding the taper;

step ten, tensioning the metal piece to fix the metal piece on the weaving piece.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (7)

1. A braided composite reinforcing cable, comprising:

comprising a core and a yarn;

the yarns surround the core and surround and coat the core in a staggered weaving mode to form a yarn coating layer, and at least one layer of the yarn coating layer is arranged; the yarn rotating directions of the adjacent yarn coating layers are opposite.

2. A braided composite reinforcing cord according to claim 1, wherein:

the rotation staggered angle of the yarns of the yarn coating layer is 70-110 degrees.

3. A braided composite reinforcing cord according to claim 1, wherein:

the staggered weaving mode is as follows: every layer of yarn coating includes eight strands the yarn, eight strands the yarn centers on the core, two liang of rotation of yarn are crisscross after become a yarn winding festival, and the branching immediately extends outward to with the yarn that extends in the adjacent yarn winding festival again rotate crisscross after the branching.

4. A braided composite reinforcing cord according to claim 1, wherein:

in the yarn coating layer of the same layer, adjacent yarns are made of different or same materials.

5. A braided composite reinforcing cord according to any one of claims 1 to 4, wherein:

the yarns are of different composite materials.

6. A composite spoke incorporating a braided composite reinforcing cord as claimed in any one of claims 1 to 5, the core being a composite rod.

7. A composite spoke according to claim 6 in which the composite rod is round or flat.

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