CN209266061U - A kind of high tensile crane drum cable - Google Patents

Abstract

The utility model discloses a reel cable for a high tensile crane, which comprises a wear-resistant layer, a tensile layer and a wire core arranged from outside to inside, and the wire core includes a plurality of power wires, neutral wire groups and A plurality of tensile strips, a plurality of power conductors and neutral conductor groups are evenly spaced inside the core; a plurality of tensile strips are respectively arranged in the gap between the two power conductors or the power conductor and the neutral conductor In the gap between the groups; it also includes a first filling layer, the first filling layer is arranged between the tensile layer and the wire core, and a plurality of compression strips are arranged in the first filling layer, and the compression resistance The sections of the strips are all flat, and the extension directions of the heights of the multiple anti-compression strips all point to the same radial direction of the first filling layer, and the anti-compression strips distributed at the two radial ends of the first filling layer in the same radial direction The number of lines is different. The utility model provides a reel cable for a high tensile crane, which significantly improves the compressive capacity of the cable without changing the cross-sectional area.

Description

A reel cable for high tensile cranes

technical field

The utility model relates to the technical field of reel cables, in particular to a reel cable for high tensile cranes.

Background technique

As the power of mobile equipment increases, the cross-section of the power supply cable required is correspondingly lengthened, so the weight and installation length of the cable are further increased; The application of mechanical equipment with similar working conditions such as cranes is no longer applicable. At present, about 90% of the cranes in the world are powered by cable reels. The advantage is that the cables are unwound smoothly when the equipment is moving, so as to ensure the continuous supply of power and control information and maintain the normal operation of the equipment. In addition, with the increase of cable length and crane speed, higher cable strength and better flexibility are required; the increase of cable strength means that the diameter and weight of the cable must be increased, resulting in an increase in the size of the cable reel and an increase in production costs.

In the working state, the force on the cable on the reel is the axial tension of the cable on the one hand, but more from the radial pressure of the cable. Therefore, while improving the strength and flexibility of the cable, attention must also be paid to it. The compressive capacity of the cable.

However, the existing products all offset the radial pressure by enhancing the axial tensile strength of the cable. After force analysis, relatively large axial tension is required to overcome the radial pressure, which undoubtedly increases the cross-sectional area of the cable, which not only wastes materials, but also increases the cost. Therefore, without changing the cross-sectional area of the cable, enhancing the compressive capacity of the cable is the primary technical problem to be solved by those skilled in the art.

Utility model content

The purpose of the utility model is to provide a reel cable for a high-tensile crane, which can significantly improve the compressive capacity of the cable without changing the cross-sectional area.

The technical scheme adopted by the reel cable for a high tensile crane disclosed by the utility model is:

A reel cable for high-tensile cranes, including a wear-resistant layer, a tensile layer and a core arranged from the outside to the inside, and the core includes a plurality of power wires, a neutral wire group and a plurality of tensile bars , a plurality of the power conductors and neutral conductor groups are evenly spaced inside the wire core; a plurality of the tensile strips are respectively arranged in the gap between the two power conductors or the gap between the power conductor and the neutral conductor group Middle; also includes the first filling layer, the first filling layer is arranged between the tensile layer and the wire core, the first filling layer is provided with a plurality of anti-compression strips, the sections of the anti-compression strips are Flat shape, the extension directions of the heights of multiple anti-compression strips all point to the same radial direction of the first filling layer, and the number of anti-compression strips distributed at the two radial ends of the first filling layer in the same radial direction is different.

As a preferred solution, a fireproof layer is provided between the wear-resistant layer and the tensile layer.

As a preferred solution, the tensile layer is a fiber braided mesh layer.

As a preferred solution, the power lead includes a core wire of the power lead and a first insulating sheath, and the first insulating sheath is sheathed outside the core wire of the power lead.

As a preferred solution, the neutral wire group includes a plurality of neutral wire cores and a second insulating sheath, and the second insulating sheath is sheathed outside the plurality of neutral wire core wires.

As a preferred solution, multiple neutral wire cores are twisted and wound into one body.

As a preferred solution, a second filler is provided between the plurality of power wires, the neutral wire group and the tensile strip of the wire core.

As a preferred solution, the first filling layer is rubber, and the second filling is chip-like.

The beneficial effect of the reel cable for high tensile cranes disclosed by the utility model is: the wear-resistant layer, the tensile layer and the wire core are arranged from the outside to the inside, and a plurality of power wires and neutral wire groups are evenly spaced in the Inside the wire core; a plurality of tensile strips are respectively arranged in the gap between the two power conductors or in the gap between the power conductor and the neutral conductor group; the first filling layer is arranged between the tensile layer and the core, and the second A filling layer is provided with multiple anti-compression strips, the sections of which are all flat, and the extension directions of the heights of the multiple anti-compression strips all point to the same radial direction of the first filling layer, and the first filling layer is in the same radial direction. The number of anti-compression strips distributed at the two radial ends of the direction is different; using the gravity of the anti-compression strips and the number of anti-compression strips contained in the first filling layer is different, a structure with one end being heavy and the other end light is formed. Therefore, in the natural state, the direction of the height of the anti-compression bar of the cable is perpendicular to the horizontal ground or approximately perpendicular to the bottom surface; The heightening in the vertical direction is relatively difficult to deform under the force, so the anti-compression strip can effectively resist the pressure generated by gravity in the radial direction in the vertical direction through its own structure; thus, the cable can be significantly improved without changing the cross-sectional area. Stress resistance.

Description of drawings

Fig. 1 is a structural schematic diagram of a reel cable for a high-tensile crane of the present invention.

Detailed ways

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further elaborated and illustrated:

Please refer to FIG. 1 , a reel cable for high tensile cranes, including a wear-resistant layer 10 , a fireproof layer 20 , a tensile layer 30 , a first filling layer 40 and a wire core 50 .

The wear-resistant layer 10, the fireproof layer 20, the tensile layer 30, the first filling layer 40 and the wire core 50 are arranged from outside to inside. In this embodiment, the tensile layer 30 is a fiber-woven mesh layer.

The first filling layer 40 is provided with a plurality of anti-compression strips 41. The cross-sections of the anti-compression strips 41 are all flat. The number of anti-compression strips 41 distributed at two radial ends of a filling layer 40 in the same radial direction is different. In this embodiment, the first filling layer 40 is rubber. The position of the anti-pressure bar 41 is restrained by rubber to prevent it from shaking.

The wire core 50 includes a plurality of power conductors 51 , a neutral conductor group 52 , a plurality of tensile strips 53 and a second filling layer 54 .

The power conductor 51 includes a power conductor core wire 511 and a first insulating sheath 512 , and the first insulation sheath 512 is sheathed outside the power conductor core wire 511 .

The neutral wire group 52 includes a plurality of neutral wire cores 521 and a second insulating sheath 522, and the second insulating sheath 522 is sheathed outside the plurality of neutral wire core wires 521. In this embodiment, the neutral wire core 521 is an enameled wire, and a plurality of neutral wire cores 521 are twisted and wound into one body.

Multiple power conductors 51 and neutral conductor groups 52 are evenly spaced inside the core 50 . A plurality of tensile strips 53 are respectively arranged in the gap between the two power conductors 51 or in the gap between the power conductor 51 and the neutral conductor group 52 to provide high tensile strength for the wire core 50 .

The second filler 54 is arranged in the gap between the multiple power conductors 51 of the wire core 50, the neutral conductor group 52 and the tensile strip 53. The second filler 54 is debris-like, so that a plurality of power conductors 51, a neutral conductor group 52 and a plurality of tensile strips 53 can issue a small displacement inside the core 50, so as to avoid breaking the cable when the bending angle is too large.

This technical solution utilizes the gravity of the anti-compression strips 41 and the difference in the number of anti-compression strips 41 contained in the first filling layer 40 to form a structure in which one end is heavy and the other end is light. Therefore, in the natural state, the direction in which the height of the compression strip 41 of the cable points is perpendicular to the horizontal ground or approximately perpendicular to the bottom surface. At this time, all the gravity of the cable presses against the vertical or approximately vertically distributed compression bar 41 , and due to its heightening in the vertical direction, it is relatively difficult to deform under force. Therefore, the anti-pressure bar 41 effectively resists the radial pressure generated by gravity in the vertical direction through its own structure. Therefore, the compressive capacity of the cable can be significantly improved without changing the cross-sectional area. At the same time, when winding the cable, it is only necessary to rotate the cable by 90°. Since the anti-compression strip 41 in the cable remains horizontal, it is easily deformed and twisted due to the influence of its own gravity, which is convenient for winding the cable.

The utility model provides a reel cable for high tensile cranes. The wear-resistant layer, the tensile layer and the wire core are arranged from outside to inside, and a plurality of power wires and neutral wire groups are evenly spaced inside the wire core; Tensile strips are respectively arranged in the gap between the two power conductors or in the gap between the power conductor and the neutral conductor group; the first filling layer is arranged between the tensile layer and the core, and the first filling layer is arranged There are multiple anti-compression strips, the sections of which are all flat, and the extension directions of the heights of the multiple anti-compression strips all point to the same radial direction of the first filling layer, and the two diameters of the same radial direction of the first filling layer The number of anti-compression strips distributed toward the end is different; using the gravity of the anti-compression strips and the number of anti-compression strips contained in the first filling layer is different, a structure with one end being heavy and the other end light is formed. Therefore, in the natural state, the direction of the height of the anti-compression bar of the cable is perpendicular to the horizontal ground or approximately perpendicular to the bottom surface; The heightening in the vertical direction is relatively difficult to deform under the force, so the anti-compression strip can effectively resist the pressure generated by gravity in the radial direction in the vertical direction through its own structure; thus, the cable can be significantly improved without changing the cross-sectional area. Stress resistance.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (8)

1. A reel cable for high-tensile cranes, comprising a wear-resistant layer, a tensile layer and a wire core arranged from the outside to the inside, wherein the wire core includes a plurality of power wires and neutral wire groups and a plurality of tensile strips, a plurality of power conductors and neutral conductor groups are evenly spaced inside the wire core; A plurality of said tensile strips are arranged respectively in the gap between the two power wires or in the gap between the power wire and the neutral wire group; It also includes a first filling layer, the first filling layer is arranged between the tensile layer and the wire core, and a plurality of compression strips are arranged in the first filling layer, and the sections of the compression strips are all flat The extension directions of the heights of the plurality of anti-compression strips all point to the same radial direction of the first filling layer, and the number of anti-compression strips distributed at the two radial ends of the first filling layer in the same radial direction is different. 2. A reel cable for high tensile cranes according to claim 1, characterized in that a fireproof layer is provided between the wear-resistant layer and the tensile layer. 3. A reel cable for high tensile cranes according to claim 1, characterized in that the tensile layer is a fiber braided mesh layer. 4. A reel cable for high-tensile cranes according to any one of claims 1-3, characterized in that, the power conductor includes a power conductor core wire and a first insulating sheath, and the first insulating sheath Set outside the core wire of the power conductor. 5. A kind of reel cable for high-tensile cranes according to any one of claims 1-3, characterized in that, the neutral wire group comprises a plurality of neutral wire cores and a second insulating sheath, so The second insulating sleeve is sheathed on the outside of the plurality of neutral wire core wires. 6 . The reel cable for high-tensile cranes according to claim 5 , wherein a plurality of said neutral wire cores are twisted and rolled into one body. 7 . 7. A kind of reel cable for high-tensile cranes as claimed in any one of claims 1-3, characterized in that, a plurality of power wires, neutral wire groups, and tension bars of the wire core are arranged between There is a second filling. 8 . The reel cable for high tensile cranes according to claim 7 , wherein the first filling layer is rubber, and the second filling is chip-like. 9 .