Movable trailing cable for building pile driver

Abstract

The utility model relates to a mobile trailing cable for a building pile driver. The mobile trailing cable is characterized by comprising a cable core, a filling body, a reinforcing wrapping tape, a reinforcing braid layer and an outer sheath, wherein the cable core consists of four wires; the outer sheath is bonded with the ethylene propylene rubber insulation and the woven aramid yarn, so that the overall bending and the overall tensile strength of the cable are facilitated, and the insulation displacement, the sheath bulging and the conductor core breaking are prevented; the wear-resistant and corrosion-resistant performance is good, the service life is long, the shutdown replacement frequency of the pile driver due to the abrasion of the trailing cable is reduced, the construction efficiency is improved, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a mobile towing cable for a building pile driver. Background Art

[0002] At present, pile drivers used in large construction sites need to be equipped with large-sized towing cables because they need to move within the site. However, the environmental conditions of such construction sites are complex, and there are generally various oil stains, stagnant water, and rocks with many edges and corners. In addition, due to the long construction period of some projects, the towing cables that need to be used on site for a long time have extremely strict wear and corrosion resistance requirements. The cables have a short service life and often need to be shut down for replacement, which delays the construction period and increases construction costs. Summary of the invention

[0003] The utility model provides a mobile towing cable for a construction pile driver, which has good wear resistance and corrosion resistance and a long service life, reduces the frequency of stopping and replacing the pile driver due to wear of the towing cable, improves construction efficiency and reduces construction costs.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A mobile towing cable for a construction pile driver, characterized in that it comprises a cable core composed of four conductors, a filler, a reinforcement tape, a reinforcement braided layer and an outer sheath;

[0006] Each of the wires comprises a conductor and an insulating layer, the conductor is formed by a bundle of several soft copper wires, each of the wires is further twisted into the cable core, each conductor is coated with the insulating layer, and the insulating layer is made of EPDM rubber;

[0007] In order to make the cable core round, the gap between the outer surfaces of each conductor in the cable core is filled with a filling body, the filling body is composed of a fiber nylon thread and an unvulcanized rubber outer layer, the unvulcanized rubber outer layer is axially extruded on the fiber nylon thread, and the fiber nylon thread in the filling body can improve the structural strength;

[0008] The reinforcing tape is a non-woven tape with two layers of mutually bonded layers and connecting ribs provided therebetween. The reinforcing tape is wrapped around the cable core filled with the filler at intervals, and the wrapping gap rate is greater than or equal to 25%;

[0009] The reinforcing braided layer is made of aramid yarn material, and the surface of the reinforcing braided layer has uniform meshes, and the braiding density is 30%-40%;

[0010] The outer sheath is a sleeve made of chloroprene rubber elastomer material, which is coated on the outside of the reinforced braided layer. The inner surface of the outer sheath has a sticky layer, which is used to adhere the insulating layer, the reinforcing tape and the reinforced braided layer into a whole through the mesh on the reinforced braided layer and the gap between the reinforcing tape, thereby reducing the displacement between materials and improving the overall tensile strength.

[0011] A further solution is that the cross section of the filling body is a sector with arc edges on both sides, and the two sides are consistent with the outer wall surface of the wire, so that it can fit more closely with the outer wall surface of the wire.

[0012] A further solution is that the conductor wire bundle twisting pitch is 16 times to 20 times.

[0013] A further solution is that the double-twisted twist pitch of the conductor is 10 to 14 times.

[0014] The utility model has the advantages that the outer sheath is bonded with the EPDM rubber insulation and the braided aramid yarn, which is beneficial to the overall bending and overall tensile strength of the cable, and prevents the displacement of the insulation, bulging of the sheath and broken core of the conductor; it has good wear resistance and corrosion resistance, long service life, reduces the frequency of shutdown and replacement of the pile driver due to wear of the towing cable, improves construction efficiency and reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Example

[0017] like Figure 1 As shown, a mobile towing cable for a construction pile driver includes a cable core composed of four conductors 1, a filler 2, a reinforcing tape 3, a reinforcing braided layer 4 and an outer sheath 5;

[0018] Each of the wires 1 comprises a conductor 11 and an insulating layer 12, wherein the conductor 11 is formed by twisting a plurality of soft copper wires into a bundle, and each of the wires 1 is further twisted into a cable core, and each of the conductors 11 is coated with the insulating layer 12, and the insulating layer 12 is made of EPDM rubber;

[0019] The gap between the outer surfaces of each conductor 1 in the cable core is filled with the filling body 2, which is composed of a fiber nylon thread 21 and an unvulcanized rubber outer layer 22. The unvulcanized rubber outer layer 22 is axially extruded on the fiber nylon thread 21. The fiber nylon thread in the filling body 2 can improve the structural strength.

[0020] The reinforcing tape 3 is a non-woven tape with two layers of mutually bonded layers and connecting ribs therebetween. The reinforcing tape 3 is wrapped around the cable core filled with the filler 2 at intervals, and the wrapping gap rate is greater than or equal to 25%;

[0021] The reinforcing braided layer 4 is made of aramid yarn material, and has evenly distributed meshes on its surface, with a braiding density of 30%-40%;

[0022] The outer sheath 5 is a sleeve made of chloroprene rubber elastomer material, which is coated on the outside of the reinforced braided layer 4. The inner surface of the outer sheath 5 has an adhesive layer 51, which is used to adhere the insulating layer 12, the reinforcing tape 3 and the reinforced braided layer 4 into a whole through the mesh on the reinforced braided layer 4 and the gap between the reinforcing tape 3, thereby reducing the displacement between the materials and improving the overall tensile strength.

[0023] The cross section of the filling body 2 is a sector with arc edges on both sides, and the two sides are consistent with the outer wall surface of the conductor 1, so that it can fit more closely with the outer wall surface of the conductor 1.

[0024] The conductor 11 has a stranded twist pitch of 16 to 20 times.

[0025] The double-twisted twist pitch of the conductor 1 is 10 to 14 times.

Claims

1. A mobile towing cable for a construction pile driver, characterized in that It includes a cable core composed of four conductors, a filler, a reinforcing tape, a reinforcing braided layer and an outer sheath; Each of the wires comprises a conductor and an insulating layer, the conductor is formed by a bundle of several soft copper wires, each of the wires is further twisted into the cable core, each conductor is coated with the insulating layer, and the insulating layer is made of EPDM rubber; The gap between the outer surfaces of each conductor in the cable core is filled with a filling body, the filling body is composed of a fiber nylon line and an unvulcanized rubber outer layer, and the unvulcanized rubber outer layer is axially extruded on the fiber nylon line; The reinforcing tape is a non-woven tape with two layers of mutually bonded layers and connecting ribs provided therebetween. The reinforcing tape is wrapped around the cable core filled with the filler at intervals, and the wrapping gap rate is greater than or equal to 25%; The reinforcing braided layer is made of aramid yarn material, and the surface of the reinforcing braided layer has uniform meshes, and the braiding density is 30%-40%; The outer sheath is a sleeve made of chloroprene rubber elastomer material, which is coated on the outside of the reinforced braided layer. The inner surface of the outer sheath has a sticky layer, which is used to adhere the insulating layer, the reinforcing tape and the reinforced braided layer into a whole through the gap between the mesh on the reinforced braided layer and the reinforcing tape.

2. A mobile towing cable for a construction pile driver as claimed in claim 1, characterized in that The cross section of the filling body is a fan-shaped body with two side edges being arc edges, and the two side edges are consistent with the outer wall surface of the conductor.

3. A mobile towing cable for a construction pile driver as claimed in claim 1 or 2, characterized in that The conductor wire bundle twisting pitch is 16 times to 20 times.

4. A mobile towing cable for a construction pile driver as claimed in claim 1 or 2, characterized in that The double-twisted twist pitch of the conductor is 10 to 14 times.

5. A mobile towing cable for a construction pile driver as claimed in claim 3, characterized in that The double-twisted twist pitch of the conductor is 10 to 14 times.

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