阅读说明：本技术 一种抗扭钢绞线 (Anti-torsion steel strand ) 是由 蒋宇婷 于 2019-09-27 设计创作，主要内容包括：本发明涉及钢绞线生产领域,尤其涉及一种抗扭钢绞线,其包括钢绞线本体、内包覆层、外包覆层及防扭装置,钢绞线本体包括中部钢绞线及外围钢绞线,中部钢绞线及每个外围钢绞线均包括中部钢丝、外围钢丝及包覆于外围钢丝外的保护层,外包覆层、内包覆层均为弹性橡胶材料,保护层为耐火纤维材料,内包覆层包覆于外围钢绞线的外围,外包覆层包覆于内包覆层外且二者之间留有空腔,防扭装置包括均匀的沿外包覆层内壁固定设置的多个弹性柱及与内包覆层外壁固定连接的弹簧,弹性柱与弹簧相对设置且弹性柱前部过盈配合的伸入到弹簧内。本发明提供的装置结构简单、能承受较大的冲击力及扭矩且耐火性能比较强。(The invention relates to the field of steel strand production, in particular to a torsion-resistant steel strand which comprises a steel strand body, an inner cladding layer, an outer cladding layer and a torsion-resistant device, wherein the steel strand body comprises a middle steel strand and peripheral steel strands, the middle steel strand and each peripheral steel strand respectively comprise a middle steel wire, a peripheral steel wire and a protective layer coated outside the peripheral steel wire, the outer cladding layer and the inner cladding layer are both made of elastic rubber materials, the protective layer is made of refractory fiber materials, the inner cladding layer is coated on the periphery of the peripheral steel strands, the outer cladding layer is coated outside the inner cladding layer, a cavity is reserved between the outer cladding layer and the inner cladding layer, the torsion-resistant device comprises a plurality of uniform elastic columns fixedly arranged along the inner wall of the outer cladding layer and springs fixedly connected with the outer wall of the inner cladding layer, the elastic columns are arranged opposite to the springs, and. The device provided by the invention has a simple structure, can bear larger impact force and torque, and has stronger fire resistance.)

1. A torsion-resistant steel strand is characterized by comprising a steel strand body, an inner cladding layer, an outer cladding layer and an anti-torsion device, the steel strand body comprises a middle steel strand and peripheral steel strands uniformly distributed around the middle steel strand, the middle steel strand and each peripheral steel strand respectively comprise a middle steel wire, peripheral steel wires uniformly distributed around the middle steel wire and a protective layer coated outside the peripheral steel wires, the outer coating layer and the inner coating layer are both made of elastic rubber materials, the protective layer is made of refractory fiber materials, the inner cladding layer is coated on the periphery of the peripheral steel strand, the outer cladding layer is coated outside the inner cladding layer, a cavity is reserved between the inner cladding layer and the outer cladding layer, the anti-twist device comprises a plurality of elastic columns which are uniformly and fixedly arranged along the inner wall of the outer cladding layer and a spring which is fixedly connected with the outer wall of the inner cladding layer, the elastic column and the spring are oppositely arranged, and the front part of the elastic column stretches into the spring in an interference fit mode.

2. The torsion-resistant steel strand as claimed in claim 1, wherein the plurality of elastic columns are integrally formed with the outer covering layer, the outer covering layer is provided with a seam along an extending direction, and the seam is fixedly connected by means of thermal fusion.

3. The torsion-resistant steel strand as claimed in claim 1, wherein a plurality of elastic buffering members are disposed in the gaps between the inner cladding layer and the outer steel strand, each elastic buffering member is formed by combining three arc-shaped elastic steel sheets and comprises a bottom elastic steel sheet and two side elastic steel sheets, the radian of the bottom elastic steel sheet is adapted to that of the inner cladding layer, and the radian of the two side elastic steel sheets is adapted to that of the corresponding steel strand body.

Technical Field

The invention relates to the technical field of steel strand production, in particular to a torsion-resistant steel strand.

Background

The steel strand is generally formed by twisting a plurality of steel wires together and then coating an outer protective layer on the outer surface, the conventional steel strand is often required to be combined with the plurality of steel strands to form a steel cable with a certain diameter, and then the steel strand is coated with the protective layer on the outer surface.

Disclosure of Invention

The invention aims to solve the technical problem of providing a torsion-resistant steel strand which has a simple structure, can bear larger impact force and torque and has stronger fire resistance.

The invention is realized by the following technical scheme:

a torsion-resistant steel strand comprises a steel strand body, an inner cladding layer, an outer cladding layer and a torsion-resistant device, the steel strand body comprises a middle steel strand and peripheral steel strands uniformly distributed around the middle steel strand, the middle steel strand and each peripheral steel strand respectively comprise a middle steel wire, peripheral steel wires uniformly distributed around the middle steel wire and a protective layer coated outside the peripheral steel wires, the outer cladding layer and the inner cladding layer are both made of elastic rubber materials, the protective layer is made of fire-resistant fiber materials, the inner cladding layer is coated on the periphery of the peripheral steel strand, the outer cladding layer is coated outside the inner cladding layer, a cavity is reserved between the inner cladding layer and the outer cladding layer, the anti-twist device comprises a plurality of elastic columns which are uniformly and fixedly arranged along the inner wall of the outer cladding layer and a spring which is fixedly connected with the outer wall of the inner cladding layer, the elastic column and the spring are oppositely arranged, and the front part of the elastic column stretches into the spring in an interference fit mode.

Furthermore, a plurality of elastic columns and the outer cladding layer are integrally formed, seams are arranged on the outer cladding layer along the extending direction, and the seams are fixedly connected in a hot melting mode.

Furthermore, a plurality of elastic buffer parts are arranged at the gap between the inner cladding layer and the peripheral steel strand, each elastic buffer part is formed by combining three arc-shaped elastic steel sheets and comprises a bottom elastic steel sheet and two lateral elastic steel sheets, the radian of the bottom elastic steel sheet is matched with that of the inner cladding layer, and the radians of the two lateral elastic steel sheets are matched with that of the corresponding steel strand body.

Advantageous effects of the invention

A torsion-resistant steel strand, the steel strand body includes the middle steel strand and the peripheral steel strand evenly distributed around the middle steel strand, the middle steel strand and each peripheral steel strand include the middle steel wire, the peripheral steel wire evenly distributed around the middle steel wire and the protective layer coated outside the peripheral steel wire, the steel strand can reach a certain diameter and strength, and the protective layer of the fire-resistant fiber material is added, the steel strand has a strong fire-resistant performance, when a fire occurs, the strength of the steel strand is not greatly influenced, and because the inner and outer coating layers are provided, and a plurality of elastic columns are fixedly arranged along the inner wall of the outer coating layer and the outer wall of the inner coating layer is fixedly provided with springs, the elastic columns are arranged opposite to the springs and the front parts of the elastic columns are in interference fit with each other to extend into the springs, when the outer surface is impacted or bears a large torque, the steel strand in the inner coating layer can obtain a large buffer and protection, effectively prolonging the service life of the steel strand.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure, 1, a middle steel strand, 2, an outer cladding layer, 3, an elastic column, 4, an inner cladding layer, 5, an elastic buffer part, 6, a peripheral steel wire, 7, a peripheral steel strand, 8, a protective layer, 9, a spring and 10, the middle steel wire.

Detailed Description

The utility model provides a twist-resistant steel strand, its includes steel strand body, endocyst cladding 4, outer cladding 2 and anti-twist device, the steel strand body includes middle part steel strand 1 and equipartition peripheral steel strand 7 around the steel strand of middle part, and the number of general peripheral steel strand is 6 evenly surrounds around the steel strand of middle part, and middle part steel strand and every peripheral steel strand all include middle part steel wire 10, equipartition peripheral steel wire 6 and the cladding of peripheral steel wire 8 around the steel wire of middle part, and peripheral steel wire number is 6 evenly surrounds around the steel wire of middle part, increases steel strand diameter and intensity.

Outer cladding, endocyst cladding are elastic rubber material, and the protective layer is refractory fiber material, endocyst cladding is in the periphery of peripheral steel strand wires, and outer cladding is outside the endocyst cladding and leave the cavity between the two, the antitwist device include even along a plurality of elasticity posts 3 of the fixed setting of outer cladding inner wall and with endocyst cladding outer wall fixed connection's spring 9, the elasticity post sets up and the anterior interference fit of elasticity post stretches into in the spring relatively with the spring, and the protective layer can play the effect of fire prevention, when the conflagration breaing out, effectively protects steel strand wires not influenced, further improves the security of structure to when the surface takes place to strike or bears great moment of torsion, the intraformational steel strand wires of endocyst can obtain very big buffering and protection, has effectively prolonged steel strand wires's life.

Further, a plurality of elasticity posts and outer cladding integrated into one piece, outer cladding are equipped with the seam along extending direction, and seam department passes through hot melt mode fixed connection, is convenient for process and improves overall structure's steadiness.

Further, a plurality of elastic buffer parts 5 are arranged at the gap between the inner cladding layer and the peripheral steel strand, each elastic buffer part is formed by combining three arc-shaped elastic steel sheets and comprises a bottom elastic steel sheet and two lateral elastic steel sheets, the radian of the bottom elastic steel sheet is matched with that of the inner cladding layer, the radians of the two lateral elastic steel sheets are matched with corresponding steel strand bodies, not only can peripheral steel strand loosening be prevented at the inner cladding layer, but also impact on the peripheral steel strand can be further buffered.

Because the steel strand body comprises the middle steel strand and the peripheral steel strands uniformly distributed around the middle steel strand, the middle steel strand and each peripheral steel strand respectively comprise the middle steel wire, the peripheral steel wires uniformly distributed around the middle steel wire and the protective layer coated outside the peripheral steel wires, the steel strand can reach a certain diameter and strength, and the protective layer of a refractory fiber material is added, so that the steel strand has strong fire resistance, when a fire disaster occurs, the strength of the steel strand cannot be greatly influenced, and because the steel strand is provided with the inner and outer coating layers, a plurality of elastic columns are fixedly arranged along the inner wall of the outer coating layer, springs are fixedly arranged on the outer wall of the inner coating layer, the elastic columns are opposite to the springs, the front parts of the elastic columns are in interference fit with the springs, when the outer surface is impacted or bears large torque, the steel strand in the inner coating layer can be greatly buffered and protected, effectively prolonging the service life of the steel strand.

In conclusion, the torsion-resistant steel strand protected by the invention has the advantages of simple structure, capability of bearing larger impact force and torque and stronger fire resistance.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.