Wear-resistant power cable

Abstract

The utility model relates to the technical field of power cables, and provides a wear-resistant power cable, which comprises a cable core, conductor shields coated on the outer side wall of the cable core, rubber filling particles arranged between the conductor shields, an insulating mechanism, a tensile mechanism arranged on the outer side of the conductor shields, and a spiral steel tape armor arranged on the outer side of the insulating mechanism, the spiral steel tape armoring is wrapped outside the tensile mechanism, the corrugated pipe type outer sheath is wrapped outside the spiral steel tape armoring, and the insulation mechanism comprises a cross-linked polyethylene insulation sleeve which is sleeved outside the conductor shield. The corrugated pipe type outer sheath covers the outer wall of the cable, so that mechanical damage such as scratches and impact can be effectively prevented, the service life of the cable is prolonged, the corrugated pipe type outer sheath can also prevent the influence of environmental factors on the corrugated pipe such as ultraviolet rays and chemical substance erosion, the durability and stability of the corrugated pipe are further enhanced, and the service life of the cable is prolonged. And the corrugated pipe type outer sheath effectively reduces the surface contact stress, so that the wear resistance of the cable is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power cable technical field, concretely relates to a wear -resisting power cable. BACKGROUND

[0002] Power cable is used for transmission and distribution of electric energy cable, power cable is often used in urban underground power network, power station outgoing line, industrial and mining enterprise internal power supply and cross river and sea underwater transmission line, in power line, the cable proportion is gradually increasing, power cable is in the main line of power system and is used for transmission and distribution of high -power electric energy cable product, including 1-500kV and above various voltage levels, various insulation power cable.

[0003] Such as the publication number CN217606608U proposes a wear -resisting power cable, relates to power cable technical field, in order to solve the existing power cable its outer surface does not have detachable high wear -resisting structure, in the process of power cable laying, the skin wear and tear condition easily appears, the overall practicality has to be improved the problem.The power cable main part includes the first insulating sleeve, a plurality of wear -resisting block installation grooves are arranged on the side surface of the first insulating sleeve, the high wear -resisting ceramic block is buckled and installed in the inside of wear -resisting block installation groove, the inner wall of the first insulating sleeve is provided with shock -absorbing rubber layer, the inner wall of the shock -absorbing rubber layer is provided with the second insulating sleeve, the shock -absorbing rubber layer, the first insulating sleeve, the second insulating sleeve are integrally connected, the shock -absorbing rubber layer is honeycombed, a plurality of high wear -resisting ceramic blocks are circularly distributed on the outer surface of the first insulating sleeve.

[0004] However in the implementation related technology found above wear -resisting power cable has following problem: above case technology sets up detachable high wear -resisting structure, in the processing technology, it is more complicated, in the use process, it is easy to cause detachable high wear -resisting structure to fall, thereby cannot play the wear -resisting effect, thereby reduces the service life of cable, the device sets up the corrugated pipe type outer sheath and effectively reduces the surface contact stress, thereby improves the wear resistance of cable. UTILITY MODEL CONTENTS

[0005] The utility model proposes a wear -resisting power cable, solve the processing technology in related technology more complicated, in the use process, it is easy to cause detachable high wear -resisting structure to fall, thereby cannot play the wear -resisting effect problem.

[0006] The technical scheme of the utility model is as follows: a wear -resisting power cable, comprising: cable core, the conductor shield of the outer side wall of the cable core is covered;

[0007] Insulating mechanism, set up in the outside of the conductor shield;

[0008] Tensile mechanism, set up in the outside of the insulating mechanism;

[0009] spiral steel belt armor, wrapped outside the tensile mechanism;

[0010] corrugated pipe type outer sheath, wrapped outside the spiral steel belt armor.

[0011] Preferably, the insulation mechanism includes a cross-linked polyethylene insulation sleeve wrapped outside the conductor shield, and a neoprene partition arranged inside the cross-linked polyethylene insulation sleeve.

[0012] Preferably, the conductor shield is located inside the cross-linked polyethylene insulation sleeve.

[0013] Preferably, the tensile mechanism includes a Kevlar fiber braid layer wrapped outside the cross-linked polyethylene insulation sleeve, and four cotton threads braided inside the Kevlar fiber braid layer.

[0014] Preferably, the Kevlar fiber braid layer is located between the spiral steel belt armor and the cross-linked polyethylene insulation sleeve.

[0015] The working principle and beneficial effects of the utility model are as follows:

[0016] I. The spiral steel belt armor is wrapped outside the cable by high-strength steel belts, which can effectively resist external physical damage such as impact and compression, ensure the stability and integrity of the internal structure, and the steel belt as a metal conductor has a certain electromagnetic shielding effect, which can reduce the influence of electromagnetic interference on the performance of the equipment.

[0017] II. The corrugated pipe type outer sheath covers the outer wall of the cable, which can effectively prevent mechanical damage such as scratches and impact, thereby prolonging the service life of the cable. The corrugated pipe type outer sheath can also prevent environmental factors such as ultraviolet rays and chemical substance erosion from affecting the corrugated pipe, further enhancing the durability and stability of the corrugated pipe. The corrugated pipe type outer sheath effectively reduces the surface contact stress, thereby improving the wear resistance of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0019] Figure 1 The overall three-dimensional structure schematic diagram of the utility model is shown in the figure.

[0020] Figure 2 The plane structure schematic diagram of the utility model is shown in the figure.

[0021] Figure 3 The partial three-dimensional structure schematic diagram of the utility model is shown in the figure.

[0022] In the figure: 1, cable core; 2, conductor shield;

[0023] 3, insulation mechanism; 31, cross-linked polyethylene insulation sleeve; 32, neoprene rubber partition;

[0024] 4, tensile mechanism; 41, Kevlar fiber braid; 42, cotton thread;

[0025] 5, spiral steel belt armor; 6, corrugated pipe outer sheath. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.

[0027] Please refer to Figure 1 - Figure 3 A wear-resistant power cable, comprising: a cable core 1, a conductor shield 2 wrapped on the outer wall of the cable core 1, an insulation mechanism 3 arranged outside the conductor shield 2, a tensile mechanism 4 arranged outside the insulation mechanism 3, a spiral steel belt armor 5 wrapped outside the tensile mechanism 4, and a corrugated pipe outer sheath 6 wrapped outside the spiral steel belt armor 5.

[0028] The wear-resistant power cable provided by the utility model, the spiral steel belt armor 5 is wrapped outside the cable by high-strength steel belts, which can effectively resist external physical damage such as impact and compression, ensure the stability and integrity of the internal structure, and the steel belt as a metal conductor has a certain electromagnetic shielding effect, which can reduce the influence of electromagnetic interference on the performance of the equipment.

[0029] The corrugated pipe outer sheath 6 covers the outer wall of the cable, which can effectively prevent mechanical damage such as scratches and impact, thereby prolonging the service life of the cable. The corrugated pipe outer sheath 6 can also prevent environmental factors from affecting the corrugated pipe, such as ultraviolet radiation and chemical substance erosion, thereby further enhancing the durability and stability of the corrugated pipe. The corrugated pipe outer sheath 6 effectively reduces the surface contact stress, thereby improving the wear resistance of the cable.

[0030] Further, the insulation mechanism 3 comprises a cross-linked polyethylene insulation sleeve 31 wrapped outside the conductor shield 2, a neoprene rubber partition 32 arranged inside the cross-linked polyethylene insulation sleeve 31, and the conductor shield 2 located inside the cross-linked polyethylene insulation sleeve 31.

[0031] Specifically, the neoprene rubber partition 32 is arranged to bond the two conductor shields 2 together and effectively fill the gap between the two conductor shields 2, thereby improving the stability between the two conductor shields 2 and effectively preventing the misalignment between the two conductor shields 2.

[0032] By setting the crosslinked polyethylene insulation sleeve 31, the polyethylene is very sensitive to environmental stress (chemical and mechanical action), can be processed by the general thermoplastic plastic forming method, the polyethylene is mainly used for the purpose of high frequency insulation on the cable.

[0033] Further, the anti-pull mechanism 4 includes a Kevlar fiber braid layer 41 sleeved outside the crosslinked polyethylene insulation sleeve 31, four cotton threads 42 braided inside the Kevlar fiber braid layer 41, and the Kevlar fiber braid layer 41 is located between the spiral steel belt armor 5 and the crosslinked polyethylene insulation sleeve 31.

[0034] Specifically, by using the Kevlar fiber braid layer 41, the tensile strength of the cable is effectively enhanced, the service life of the cable is prolonged after bending, and the impact resistance is improved,

[0035] By setting the cotton thread 42 having soft and compressible properties, it is filled in the gap inside the cable, which can effectively occupy these spaces, so that the structure of the cable is more compact and stable, and the internal components are prevented from colliding and shifting due to shaking, vibration and other reasons during laying and use, thereby avoiding damage to the cable.

[0036] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A wear resistant power cable, characterized in that, Comprise: a cable core (1), a conductor shield (2) covering the outer wall of the cable core (1); an insulation mechanism (3) arranged outside the conductor shield (2); a tensile mechanism (4) arranged outside the insulation mechanism (3); a spiral steel belt armor (5) covering the outer side of the tensile mechanism (4); a corrugated tube outer sheath (6) covering the outer side of the spiral steel belt armor (5).

2. A wear resistant power cable according to claim 1, characterized in that: The insulation mechanism (3) comprises a cross-linked polyethylene insulation sleeve (31) sleeved outside the conductor shield (2), and a neoprene partition (32) arranged inside the cross-linked polyethylene insulation sleeve (31).

3. A wear resistant power cable according to claim 2, characterized in that: The conductor shield (2) is located inside the cross-linked polyethylene insulation sleeve (31).

4. A wear resistant power cable according to claim 3, characterized in that: The tensile mechanism (4) comprises a Kevlar fiber braid layer (41) sleeved outside the cross-linked polyethylene insulation sleeve (31), and four cotton threads (42) braided inside the Kevlar fiber braid layer (41).

5. A wear resistant power cable according to claim 4, characterized in that: The Kevlar fiber braid layer (41) is located between the spiral steel belt armor (5) and the cross-linked polyethylene insulation sleeve (31).

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