A wear-resistant and tensile-resistant driving cable

Abstract

The utility model relates to a wear-resistant and tensile-resistant driving cable. The technical problem to be solved by the utility model is to provide a wear-resistant and tensile-resistant driving cable. The technical solution adopted by the utility model: comprises a first power core assembly and a second power core assembly, the second power core assembly is wrapped with a flame retardant layer assembly, an inner monitoring line assembly and an outer sheath in sequence, the outer sheath is provided with arc wear-resistant strips and a sheath connecting part arranged around an arc interval, the number of the arc wear-resistant strips is three, the arc wear-resistant strips are provided with a soft steel wire, and the sheath connecting part is provided with an outer monitoring line assembly. The advantages of the utility model are: the arc wear-resistant strips can improve the wear resistance of the wear-resistant cable and move smoothly with low friction, the soft steel wire can greatly improve the tensile strength, and prevent the power core conductor from being broken due to tension or twisting, and the inner monitoring line assembly and the outer monitoring line assembly can provide double monitoring reminders when the soft steel wire breaks and wears to the main body of the driving cable, which is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a wear-resistant and tension-resistant driving cable. Background Art

[0002] Crane cables are cables used to connect mobile equipment and fixed power sources. Crane cables are widely used in various industrial automation systems, lifting equipment, conveying systems, production lines and other places where reliable connection between equipment is required. Existing crane cables have the following problems in actual use: 1. The crane moves back and forth during operation, causing the cable to swing or twist constantly. All the tension on the crane cable is on the conductor copper wire, so it is easy to cause the conductor copper wire to break due to tension or twisting, or even puncture the insulation layer, thereby affecting the normal operation of the crane; 2. The outer insulation material of the cable is easily scratched and worn during the swinging or twisting process, and has poor wear resistance, resulting in a short service life of the cable and no advance monitoring function before the power core breaks. The safety is poor and needs to be replaced frequently, affecting production. In view of the above problems, the existing crane cables are improved and optimized. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a wear-resistant and tensile-resistant driving cable.

[0004] The technical solution adopted by the utility model of wear-resistant and tensile-resistant driving cable is characterized in that it comprises a first power core assembly placed in the exact center and six second power core assemblies spaced around the first power core assembly, the second power core assembly is wrapped with a flame retardant layer assembly, an inner monitoring line assembly and an outer sheath in sequence, the outer sheath is provided with arc wear-resistant strips spaced around an arc and a sheath connecting portion connecting the outer sheath and the arc wear-resistant strips, the number of the arc wear-resistant strips is three, the arc wear-resistant strips are provided with soft steel wires, and the sheath connecting portion is provided with an outer monitoring line assembly;

[0005] The inner monitoring line assembly and the outer monitoring line assembly both include a cable monitoring layer and an insulating tape wrapped around the outer side of the cable monitoring layer.

[0006] The cable monitoring layer of the inner monitoring line assembly includes a monitoring core semi-conductive sheath extruded outside the flame retardant layer assembly and a monitoring line core conductor corresponding to the second power core assembly and arranged at intervals around a circular arc.

[0007] The flame retardant layer assembly includes a flame retardant layer and a flame retardant filler disposed in a gap between the flame retardant layer and the first power core assembly and the second power core assembly.

[0008] The first power core assembly and the second power core assembly each include a power core conductor and a power core insulation layer wrapped outside the power core conductor.

[0009] The soft steel wire is a plurality of twisted steel wires.

[0010] The outer sheath is made of low-smoke halogen-free flame-retardant EVA rubber.

[0011] The advantages of the wear-resistant and tensile-resistant driving cable of the utility model are: the arc wear-resistant strip can improve the wear resistance of the wear-resistant cable and move smoothly with low friction; the soft steel wire can greatly improve the tensile resistance and prevent the power core conductor from breaking due to tension or twisting; the inner monitoring line assembly and the outer monitoring line assembly can provide double monitoring reminders when the soft steel wire breaks and wears to the main body of the driving cable, which is safer and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 This is the front view of the wear-resistant and tensile-resistant driving cable of the utility model;

[0014] Figure 2 It is a stereoscopic diagram of the wear-resistant and tensile-resistant driving cable of the utility model. DETAILED DESCRIPTION

[0015] like Figure 1-2 As shown, the wear-resistant and tensile-resistant driving cable involved in the utility model comprises a first power core assembly 1 placed in the center and six second power core assemblies 2 arranged at intervals around the first power core assembly 1, the second power core assembly 2 is wrapped with a flame retardant layer assembly 9, an inner monitoring line assembly 3 and an outer sheath 4 in sequence, the outer sheath 4 is provided with arc wear-resistant strips 5 arranged at intervals around the arc and a sheath connecting portion 6 connecting the outer sheath 4 and the arc wear-resistant strips 5, the number of the arc wear-resistant strips 5 is three, the arc wear-resistant strips 5 are provided with a soft steel wire 7, the sheath connecting portion 6 An external monitoring line assembly 8 is provided inside; the internal monitoring line assembly 3 and the external monitoring line assembly 8 both include a cable monitoring layer 11 and an insulating tape 12 coated on the outside of the cable monitoring layer 11; the three arc wear-resistant strips 5 can improve the wear resistance of the wear-resistant cable and move smoothly with low friction, making it easy to retract and release; the soft steel wire 7 can greatly improve the tensile strength and prevent the power core conductor from breaking due to tension or twisting; the internal monitoring line assembly 3 and the external monitoring line assembly 8 can provide dual monitoring reminders when the soft steel wire 7 breaks and when it wears to the main body of the driving cable, which are safer and have a longer service life.

[0016] The cable monitoring layer 11 of the inner monitoring line assembly 3 includes a monitoring core semi-conductive sheath 14 extruded on the outside of the flame retardant layer assembly 9 and a monitoring line core conductor 15 corresponding to the second power core assembly 2 and arranged at intervals around a circular arc. The monitoring core semi-conductive sheath 14 fills the air gap between the conductor and the insulating layer and the unevenness on the surface of the conductor to form a smooth surface combined with the insulating layer, thereby ensuring that the electric field distribution between the insulating layer and the conductor is as uniform as possible.

[0017] The flame retardant layer assembly 9 includes a flame retardant layer 16 and a flame retardant filler 17 disposed in the gap between the flame retardant layer 16 and the first power core assembly 1 and the second power core assembly 2. The multiple protections effectively prevent the cable from burning and improve safety.

[0018] The first power core assembly 1 and the second power core assembly 2 both include a power core conductor 18 and a power core insulation layer 19 wrapped around the power core conductor 18 .

[0019] The soft steel wires 7 are multiple twisted steel wires, which can effectively improve the tensile and extrusion resistance of the cable.

[0020] The outer sheath 4 is made of low-smoke, halogen-free, flame-retardant EVA rubber.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A wear-resistant and tensile-resistant driving cable, characterized in that: The invention comprises a first power core assembly (1) placed at the center and six second power core assemblies (2) arranged at intervals around the first power core assembly (1); the second power core assembly (2) is wrapped with a flame retardant layer assembly (9), an inner monitoring line assembly (3) and an outer sheath (4) in sequence; the outer sheath (4) is provided with arc wear-resistant strips (5) arranged at intervals around an arc and a sheath connecting portion (6) connecting the outer sheath (4) and the arc wear-resistant strips (5); the number of the arc wear-resistant strips (5) is three; a soft steel wire (7) is arranged inside the arc wear-resistant strips (5); and the outer monitoring line assembly (8) is arranged inside the sheath connecting portion (6); The inner monitoring line assembly (3) and the outer monitoring line assembly (8) both comprise a cable monitoring layer (11) and an insulating tape (12) wrapped around the outside of the cable monitoring layer (11).

2. The wear-resistant and tensile-resistant driving cable according to claim 1, characterized in that: The cable monitoring layer (11) of the inner monitoring line assembly (3) comprises a monitoring core semi-conductive sheath (14) extruded on the outside of the flame retardant layer assembly (9) and monitoring line core conductors (15) corresponding to the second power core assembly (2) and arranged at intervals around a circular arc.

3. The wear-resistant and tensile-resistant driving cable according to claim 1, characterized in that: The flame retardant layer assembly (9) comprises a flame retardant layer (16), and a flame retardant filler (17) provided in a gap between the flame retardant layer (16) and the first power core assembly (1) and the second power core assembly (2).

4. The wear-resistant and tensile-resistant driving cable according to claim 1, characterized in that: The first power core assembly (1) and the second power core assembly (2) both comprise a power core conductor (18) and a power core insulation layer (19) wrapped around the power core conductor (18).

5. The wear-resistant and tensile-resistant driving cable according to claim 1, characterized in that: The soft steel wire (7) is a plurality of twisted steel wires.

6. The wear-resistant and tensile-resistant driving cable according to claim 1, characterized in that: The outer sheath (4) is made of low-smoke, halogen-free, flame-retardant EVA rubber.

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