CN209543971U

CN209543971U - A kind of railway power cable

Info

Publication number: CN209543971U
Application number: CN201822029799.3U
Authority: CN
Inventors: 周宏欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2019-10-25
Anticipated expiration: 2028-12-04

Abstract

The utility model discloses a kind of railway power cables, belong to field of cable technology, its key points of the technical solution are that, including supporting-core, filled layer, oversheath and carriage, supporting-core is located at the center of filled layer, and oversheath includes the first wearing layer, it is fitted tightly over the flame-retardant layer of the first wearing layer lower end surface, the lower end surface of flame-retardant layer is closely fitted with the second wearing layer, and the outside of carriage offers multiple sliding grooves, and the roll inside of multiple sliding grooves is connected with the steel ball to match.The outside of carriage offers multiple sliding grooves, the roll inside of multiple sliding grooves is connected with the steel ball to match, pulling eye is offered in the two sides of carriage, staff can drag cable by pulling eye, and carriage makes somebody a mere figurehead cable, and cable is prevented to be damaged in dragging process, steel ball can have been passed through during dragging in sliding groove internal slide, to save strength, the workload of staff is alleviated, is improved work efficiency.

Description

A kind of railway power cable

Technical field

The utility model relates to field of cable technology, in particular to a kind of railway power cable.

Background technique

Power cable is the cable for being used for transmission and distributing electric energy, and power cable is usually used in Urban Underground power grid, power station Lead line, industrial and mining enterprises' in-line power and mistake river sea submarine transmission line, in power circuit, cable proportion just gradually increases Add, power cable is in the basic routing line of electric system to the cable product for transmitting and distributing high-power power, including 1- 500KV and more than various voltage class, the power cable of various insulation.

With the sustainable development of China's economic, cable is widely used in many fields, nowadays using more in terms of railway Extensively, but existing railway power cable is when being consigned, and it is impaired to will cause cable, and arduously, working efficiency bottom.

Utility model content

The utility model provides a kind of railway power cable, it is intended to solve existing railway power cable and consigned When, the problem of it is impaired and laborious to will cause cable, working efficiency bottom.

The utility model is realized in this way a kind of railway power cable, including supporting-core, filled layer, oversheath and cunning Dynamic device, supporting-core are located at the center of filled layer, and the oversheath includes the first wearing layer, are fitted tightly over the first wearing layer The flame-retardant layer of lower end surface, the lower end surface of the flame-retardant layer are closely fitted with the second wearing layer, and the outside of the carriage opens up There are multiple sliding grooves, the roll inside of multiple sliding grooves is connected with the steel ball to match, and the inner face of the oversheath is tight Close to be fitted with insulating layer, the inner face of the insulating layer is closely fitted with ectonexine, the inner face and ball of the ectonexine Outer end face fit closely.

Preferably, the inside of the insulating layer is machined with multiple steel wires, and multiple steel wires are uniformly distributed.

Preferably, the inside of the filled layer and be located at supporting-core outside be provided with multiple balls, multiple rubbers Conductor thread core is provided at glueballs inside center, the outer surface of the conductor thread core is closely fitted with conductor shielding, the rubber Multiple wire loops are provided between ball and conductor shielding.

Preferably, the outer surface of the supporting-core is closely fitted with wrapping layer.

Preferably, the wrapping layer and multiple balls are tangent.

Preferably, the carriage is fixedly connected with the outer wall of oversheath by screw, and the carriage is provided with Four, four carriages are symmetrical arranged two-by-two.

Compared with prior art, the utility model has the beneficial effects that

This kind of railway power cable, is provided with the first wearing layer, the second wearing layer, prevents cable from existing by the first wearing layer It is damaged in drawing process, when the first wearing layer is impaired, protection can be played the role of by the second wearing layer, while The outer wall of oversheath is fixedly connected with carriage, and the outside of carriage offers multiple sliding grooves, multiple sliding grooves it is interior Portion rolls and is connected with the steel ball to match, offers pulling eye in the two sides of carriage, staff can drag by pulling eye Cable, carriage make somebody a mere figurehead cable, and cable is prevented to be damaged in dragging process, can pass through during dragging Steel ball is in sliding groove internal slide, to save strength, alleviates the workload of staff, improves work efficiency.

Detailed description of the invention

Fig. 1 is a kind of overall structure figure of railway power cable of the utility model；

Fig. 2 is the cross-sectional view of the structure of the utility model ball；

Fig. 3 is the enlarged drawing of A in the utility model Fig. 1；

Fig. 4 is the enlarged drawing of B in the utility model Fig. 1；

Fig. 5 is the cross-sectional view of the structure of the utility model oversheath；

In figure, 1, supporting-core；11, wrapping layer；2, filled layer；3, ball；31, wire loop；32；Conductor thread core；33, it leads Body shielding；4, ectonexine；5, insulating layer；51, steel wire；6, oversheath；61, the first wearing layer；62, flame-retardant layer；63, second is wear-resisting Layer；7, carriage；71, sliding groove；72, steel ball.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this The limitation of utility model.In addition, the meaning of " plurality " is two or more in the description of the present invention, unless separately There is clearly specific restriction.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of railway power cable, including supporting-core 1, Filled layer 2, oversheath 6 and carriage 7, supporting-core 1 are located at the center of filled layer 2, and the oversheath 6 includes first wear-resisting Layer 61, is fitted tightly over the flame-retardant layer 62 of 61 lower end surface of the first wearing layer, and the lower end surface of the flame-retardant layer 62 is closely fitted with the Two wearing layers 63 prevent cable from damaging in drawing process by the first wearing layer 61, when the first wearing layer 61 is damaged, It can play the role of protection by the second wearing layer 63, be provided between the first wearing layer 61 and the second wearing layer 63 fire-retardant Layer 62, prevents cable fire, and the outside of the carriage 7 offers multiple sliding grooves 71, multiple sliding grooves 71 it is interior Portion rolls and is connected with the steel ball 72 to match, is fixedly connected with carriage 7 by screw by the outer wall in oversheath 6, sliding Dynamic device 7 is provided at an outer portion with multiple sliding grooves 71, and the roll inside of multiple sliding grooves 71 is connected with the steel ball 72 to match, And the two sides of carriage 7 are provided with pulling eye, when staff can be dragged cable by pulling eye, carriage 7 is by cable Support is aerial, and the steel ball 72 to match is connected with by the roll inside of multiple sliding grooves 71 and is slided to drag cable, is prevented Cable is damaged in dragging, while laborsaving, increases working efficiency, the inner face of the oversheath 6 is closely fitted with absolutely Edge layer 5 makes cable have the function of insulation by insulating layer 5, can be very good protection cable, so that the practicability of cable increases By force, the inner face of the insulating layer 5 is closely fitted with ectonexine 4, the inner face of the ectonexine 4 and the outer end face of ball 3 It fits closely.

Preferably, the inside of the insulating layer 5 is machined with multiple steel wires 51, and multiple steel wires 51 are uniformly distributed, institute It states the inside of filled layer 2 and is located at the outside of supporting-core 1 and be provided with multiple balls 3, at multiple 3 inside centers of ball It is provided with conductor thread core 32, the outer surface of the conductor thread core 32 is closely fitted with conductor shielding 33, the ball 3 and conductor Multiple wire loops 31 are provided between shielding 33, the outer surface of the supporting-core 1 is closely fitted with wrapping layer 11, the wrapping layer 11 is tangent with multiple balls 3, tangent by wrapping layer 11 and multiple balls 3, increases compactness, anti-leak-stopping Electricity, the carriage 7 are fixedly connected with the outer wall of oversheath 6 by screw, and there are four the settings of carriage 7, and four The carriage 7 is symmetrical arranged two-by-two, and by setting, there are four carriages 7, and are symmetrical arranged two-by-two, and cable is in surrounding It can be carried out dragging, prevent cable from damaging in dragging, while laborsaving, increase working efficiency.

The working principle and process for using of the utility model: firstly, staff can pass through the drawing of 7 two sides of carriage Hole carries out dragging cable, when dragging cable, the multiple sliding grooves 71 being arranged outside carriage 7, in sliding groove 71 Portion rolls and is connected with the steel ball 72 to match, and in dragging process, steel ball 72 is rolled, and cable can be dragged, be prevented electricity Cable is impaired, while also playing labour-saving effect, wear-resisting by first in first wearing layer 61 that is internally provided with of oversheath 6 Layer 61 prevents cable from damaging in drawing process, and is provided with the second wearing layer 63, when the first wearing layer 61 is damaged, It can play the role of protection by the second wearing layer 63.

The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle Within the scope of shield.

Claims

1. a kind of railway power cable, including supporting-core (1), filled layer (2), oversheath (6) and carriage (7), supporting-core (1) at the center of filled layer (2), it is characterised in that: the oversheath (6) includes the first wearing layer (61), is fitted closely The lower end surface of flame-retardant layer (62) in the first wearing layer (61) lower end surface, the flame-retardant layer (62) is closely fitted with the second wearing layer (63), the outside of the carriage (7) offers multiple sliding grooves (71), and the roll inside of multiple sliding grooves (71) connects It is connected to the steel ball (72) to match, the inner face of the oversheath (6) is closely fitted with insulating layer (5), the insulating layer (5) Inner face is closely fitted with ectonexine (4), and the inner face of the ectonexine (4) and the outer end face of ball (3) fit closely.

2. a kind of railway power cable according to claim 1, it is characterised in that: the inside of the insulating layer (5) processes Have multiple steel wires (51), and multiple steel wires (51) are uniformly distributed.

3. a kind of railway power cable according to claim 1, it is characterised in that: the inside and position of the filled layer (2) It is provided with multiple balls (3) in the outside of supporting-core (1), is provided with conductor lines at multiple ball (3) inside centers The outer surface of core (32), the conductor thread core (32) is closely fitted with conductor shielding (33), the ball (3) and conductor shielding (33) multiple wire loops (31) are provided between.

4. a kind of railway power cable according to claim 1, it is characterised in that: the outer surface of the supporting-core (1) is tight It is close to be fitted with wrapping layer (11).

5. a kind of railway power cable according to claim 4, it is characterised in that: the wrapping layer (11) with it is multiple described Ball (3) is tangent.

6. a kind of railway power cable according to claim 1, it is characterised in that: the carriage (7) and oversheath (6) outer wall is fixedly connected by screw, and there are four carriage (7) settings, and four carriages (7) are right two-by-two Claim setting.