CN223273037U - Cable for shuttle car - Google Patents

Abstract

The utility model discloses a cable for a shuttle car, which comprises an outer sheath, a cable center tensile element, a plurality of main wire cores and a plurality of auxiliary wire cores, wherein the cable center tensile element is positioned in the center of a cable structure, the plurality of main wire cores are positioned in the outer sheath and are arranged on the periphery side of the center tensile element in a surrounding mode, any two adjacent main wire cores are abutted against each other, a plurality of auxiliary wire cores with the same number are arranged in gaps outside the two adjacent main wire cores, the cable is in a symmetrical structure, each main wire core comprises the main wire core tensile element and a main wire core braiding conductor, the main wire core braiding conductor is braided on the periphery of the main wire core tensile element, and the plurality of auxiliary wire cores are respectively arranged in a plurality of installation gaps. According to the scheme, the plurality of tensile elements can be embedded in the cable outer sheath and an integrated extrusion process is adopted, so that the functions of the performances such as tensile strength, bending resistance, winding resistance and extrusion resistance of the cable for the shuttle car are improved, the mechanical strength and flexibility of the cable for the shuttle car are further improved, and the service life of the cable for the shuttle car is prolonged.

Description

Cable for shuttle car

Technical Field

The utility model relates to the technical field of cables, in particular to a cable for a shuttle car.

Background

The shuttle car is a coal transporting car which reciprocates between the coal mining working face and the conveying belt, one end of the shuttle car cable is connected with the shuttle car, the other end is connected with a power supply. As the shuttle moves, the shuttle cable is in a periodic motion that is wound and straightened.

For example, patent CN110077918a discloses a control system for winding and unwinding a cable according to a closed loop of the speed of a shuttle car, a cable drum is rotationally fixed on the shuttle car through a bracket, a cable is wound on the cable drum, the other end of the cable is connected with a power cabinet, a position sensor is fixed on the roller end surface of the cable drum, a stay wire sensor is fixed at the tail end of the shuttle car, a stay wire in the stay wire sensor is connected with the power cabinet, the position sensor and the stay wire sensor are both connected with a controller, the controller is electrically connected with the power cabinet, and the controller is fixed on the shuttle car. The cable drum can be controlled in a closed loop according to the speed of the shuttle car, so that the possibility that the cable is loosened, knotted and even broken and falls on the ground to be crushed by vehicles coming and going can be avoided.

However, since the shuttle cable is always in a periodic motion state of being wound and straightened, the shuttle cable is also possibly scratched by the well wall or crushed by the coal, and there is also a risk of being crushed, and for these reasons, the shuttle cable is extremely fragile to cause shutdown. Therefore, there is a need to improve the tensile, bending, winding and extrusion resistance of the cable for the shuttle car, further improve the mechanical strength and flexibility of the cable for the shuttle car, and prolong the service life of the cable for the shuttle car.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art, and provides a cable for a shuttle car, which solves the technical problems of high damage risk of the cable for the shuttle car, and the need of improving the mechanical strength and the flexibility of the cable for the shuttle car and prolonging the service life of the cable for the shuttle car in the prior art.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a cable for a shuttle car, which comprises:

An outer sheath;

A cable center tension element located at a center of the cable;

The main wire cores are positioned in the outer sheath, are arranged on the periphery of the cable center tensile element in a surrounding mode, and comprise main wire core tensile elements and main wire core braided conductors, and the main wire core braided conductors are braided on the periphery of the main wire core tensile elements;

a plurality of auxiliary wire cores, wherein any two adjacent main wire cores are mutually abutted, and gaps are formed on the outer side, and the auxiliary wire cores are respectively arranged in a plurality of the gaps.

In some embodiments, the main wire core further comprises a main wire core insulation layer extruded around the outer circumference of the main wire core braided conductor.

In some embodiments, the main wire core further comprises a copper wire shielding layer woven around the outer periphery of the main wire core insulating layer.

In some embodiments, the cable central tensile element abuts against each of the copper wire shielding layers, and the auxiliary wire core abuts against two adjacent copper wire shielding layers.

In some embodiments, the auxiliary core includes an auxiliary core tensile element and an auxiliary core braided conductor braided about an outer periphery of the auxiliary core tensile element.

In some embodiments, the auxiliary core further comprises an auxiliary core insulation layer extruded around the outer periphery of the auxiliary core braided conductor.

In some embodiments, the main wire core braided conductor and the auxiliary wire core braided conductor are each braided from a sixth type of cable conductor monofilament.

In some embodiments, the shuttle car cable further comprises a plurality of outer tensile elements embedded in the outer jacket and uniformly spaced along the circumference of the outer jacket.

In some embodiments, the outer tensile element is integrally extruded with the outer jacket.

In some embodiments, the main wire core and the auxiliary wire core are respectively provided with three;

the cable center tensile element is formed by weaving ropes made of aramid fiber materials.

Compared with the prior art, the shuttle car cable has the advantages that the main wire core is formed by the main wire core braided conductor and the main wire core tensile element, the main wire core braided conductor is a strand wire formed by a plurality of copper wires, the plurality of strand wires are braided into a net structure in a bidirectional manner, the main wire core braided conductor formed by one or more layers of braiding is arranged on the periphery of the main wire core tensile element, so that the cable is more flexible and resistant to repeated bending and is not easy to break, the plurality of main wire cores are arranged on the periphery of the cable center tensile element in a surrounding manner, a plurality of auxiliary wire cores with the same quantity are arranged in the outer gaps of the adjacent main wire cores, the cable is in a symmetrical structure, the bending resistance and softness are facilitated, the strength of the cable is improved, the plurality of auxiliary wire cores are arranged in the installation gaps of the plurality of main wire cores, the cable structure is tighter, the stress is uniform, the total outer diameter of the cable is reduced, and the bending radius of the cable is further reduced. Therefore, the cable has the functions of improving the performances of tensile strength, bending resistance, winding resistance, extrusion resistance and the like of the cable for the shuttle car, further improving the mechanical strength and flexibility of the cable for the shuttle car, using the high-strength insulation and high-strength outer sheath, and prolonging the service life of the cable for the shuttle car.

Drawings

Fig. 1 is a cross-sectional view of a cable for a shuttle car according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the shuttle car cable of FIG. 1 without the auxiliary core labeled;

FIG. 3 is a cross-sectional view of the main wire core of FIG. 1;

fig. 4 is a cross-sectional view of the auxiliary wire core of fig. 1.

Reference numerals illustrate:

1. The cable comprises an outer sheath, a cable center tensile element, a main wire core, a 3a, an adjacent main wire core outer gap, a31, a main wire core tensile element, a 32, a main wire core woven conductor, a 33, a main wire core insulating layer, a 34, a copper wire shielding layer, a 4, an auxiliary wire core, a 41, an auxiliary wire core tensile element, a 42, an auxiliary wire core woven conductor, a 43, an auxiliary wire core insulating layer and a 5, outer tensile element.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In order to solve the technical problems that the damage risk of the cable for the shuttle car is high, the mechanical strength and the flexibility of the cable for the shuttle car are required to be improved, and the service life of the cable for the shuttle car is prolonged, the utility model provides the cable for the shuttle car, which has the functions of improving the performances of tensile resistance, bending resistance, winding resistance, extrusion resistance and the like of the cable for the shuttle car, further improving the mechanical strength and the flexibility of the cable for the shuttle car, and prolonging the service life of the cable for the shuttle car.

It should be noted that, the cable for a shuttle car according to the present utility model is used for, but not limited to, a shuttle car, etc., and for convenience of description, only the application of the cable for a shuttle car to the shuttle car is taken as an example for description, and the principle of the application of the cable for a shuttle car to other types of devices is substantially the same as the principle of the application of the cable for a shuttle car to the shuttle car, and is not described in detail herein.

Referring to fig. 1 to 4, fig. 1 to 4 are schematic structural views of a cable for a shuttle car according to an embodiment of the present utility model, the cable for a shuttle car includes an outer jacket 1, a cable center tensile member 2, a plurality of main wire cores 3 and a plurality of auxiliary wire cores 4, the cable center tensile member 2 is located at a central position of the cable, the plurality of main wire cores 3 are located in the outer jacket 1 and are surrounded on a peripheral side of the cable center tensile member 2, each main wire core 3 includes a main wire core tensile member 31 and a main wire core braided conductor 32, the main wire core braided conductor 32 is braided on an outer periphery of the main wire core tensile member 31, and the plurality of auxiliary wire cores 4 are respectively disposed in a plurality of mounting gaps 3a.

The main wire core 3 is formed by the main wire core braided conductor 32 and the main wire core tensile element 31, the main wire core braided conductor 32 is a strand wire formed by a plurality of copper wires, the strand wires are braided into a net structure in a bidirectional manner, the main wire core braided conductor 32 is formed by one or more layers of braiding, the main wire core braided conductor 32 is arranged on the periphery of the main wire core tensile element 31, so that the flexibility of the cable is increased, the cable is more resistant to repeated bending and is not easy to break, a plurality of main wire cores 3 with the main wire core tensile element 31 are arranged on the periphery of the cable center tensile element 2 in a surrounding manner, and a plurality of auxiliary wire cores 4 with the same number are correspondingly arranged, so that the cable is in a symmetrical structure, is beneficial to bending resistance and softness, the strength of the cable is improved, the auxiliary wire cores 4 are positioned in the installation gaps 3a of the main wire cores 3, the cable structure is more compact, the stress is uniform, the total outer diameter of the cable is reduced, and the bending radius of the cable is further reduced. Therefore, the cable has the functions of improving the performances of tensile strength, bending resistance, winding resistance, extrusion resistance and the like of the cable for the shuttle car, further improving the mechanical strength and flexibility of the cable for the shuttle car, and prolonging the service life of the cable for the shuttle car.

In one embodiment, referring to fig. 3, the main wire core 3 further includes a main wire core insulation layer 33, and the main wire core insulation layer 33 is extruded around the outer periphery of the main wire core braided conductor 32.

In this embodiment, the main wire core insulation layer 33 is further extruded outside the main wire core braided conductor 32, and the insulation and conductor combination is tighter, so that the sliding fracture is not easy, and the wrapping tape layer is not required to be arranged outside the main wire core insulation layer 33. In the scheme, the main line core insulating layer 33 adopts high-strength ethylene propylene rubber, so that the tensile strength of the cable is improved to more than 14.0 from 6.5, and in addition, the outer sheath 1 adopts high-strength chlorinated polyethylene, so that the tensile strength is improved to more than 18.0 from 11.0, and the service life of the cable is directly prolonged due to the improvement of the performance of the material.

In one embodiment, the main wire core 3 further comprises a copper wire shielding layer 34, the copper wire shielding layer 34 being braided around the outer periphery of the main wire core insulation layer 33.

In this embodiment, the copper wire shielding layer 34 is disposed at the outermost layer of the main wire core 3 to play a role of both electromagnetic interference resistance and ground wire.

In one of the embodiments, the cable central tension element 2 abuts against each copper wire shield 34, and the corresponding auxiliary wire core 4 abuts against the adjacent two copper wire shields 34.

In this embodiment, the cable central tensile element 2 is abutted against the copper wire shielding layer 34, and meanwhile, the auxiliary wire core 4 is abutted against the copper wire shielding layer 34, so that on one hand, the overall structure is more compact, on the other hand, the force transmission among the central tensile element 2, the main wire core 3 and the auxiliary wire core 4 is more uniform, and the mechanical property of the cable is improved.

In one embodiment, referring to fig. 4, the auxiliary core 4 includes an auxiliary core tensile element 41 and an auxiliary core braided conductor 42, and the auxiliary core braided conductor 42 is braided on the outer periphery of the auxiliary core tensile element 41.

In this embodiment, the auxiliary core 4 is also provided in the form of the auxiliary core tensile element 41 and the auxiliary core braided conductor 42, so that the mechanical strength of the cable is further improved and the service life of the cable is prolonged.

In one embodiment, the auxiliary core 4 further includes an auxiliary core insulating layer 43, and the auxiliary core insulating layer 43 is extruded around the outer periphery of the auxiliary core braided conductor 42.

In this embodiment, an auxiliary core insulation layer 43 is further disposed on the outer periphery of the auxiliary core braided conductor 42 to insulate the auxiliary core braided conductor 42. And the auxiliary wire core insulating layer 43 is abutted against the copper wire shielding layer 34, so that the conduction between the auxiliary wire core braided conductor 42 and the copper wire shielding layer 34 is effectively avoided while the force conduction is realized.

In one embodiment, the main wire core braided conductor 32 and the auxiliary wire core braided conductor 42 are each braided from a sixth type of cable conductor monofilament.

In this embodiment, the outer peripheries of the main wire core tension element 31 and the auxiliary wire core tension element 41, the main wire core braided conductor 32 and the auxiliary wire core braided conductor 42 are strands composed of a plurality of copper wires, the plurality of strands are braided into a net structure in two directions, the main wire core braided conductor 32 and the auxiliary wire core braided conductor 42 which are made of one or more layers of braiding are composed of sixth type cable conductor monofilaments, the wire diameters are smaller, and specifically, the service life of the cable is prolonged.

In one embodiment, the shuttle car cable further comprises a plurality of outer tensile elements 5, and the plurality of outer tensile elements 5 are embedded in the outer sheath 1 and are uniformly spaced along the circumferential direction of the outer sheath 1.

In this embodiment, a plurality of outer tensile elements 5 are further arranged in the outer sheath 1, so that the mechanical strength of the cable is further improved, and the service life of the cable is prolonged. Specifically, the outer tension element 5 is integrally extruded with the outer sheath 1. In this scheme, extrude outer tensile member 5 and oversheath 1 an organic whole, combine compacter, and the atress is mainly on the tensile member.

In one embodiment, the main wire core 3 and the auxiliary wire core 4 are respectively provided with three, so that the three auxiliary wire cores 4 are positioned in the outer side gaps of the three main wire cores 3, and the cable structure is more compact and is uniformly stressed. In addition, the outer tension element 5, the cable center tension element 2, the main wire core tension element 31, and the auxiliary wire core tension element 41, in which the outer sheath is embedded, are all aramid fiber material braided rope tension elements. Compared with the prior art, the steel wire rope is used as the tensile element, and the steel wire rope is hard in material and tends to rebound after bending, but is relatively poor in self-straightness and easy to be affected by electromagnetic interference and lightning attack. The aramid fiber material adopted by the scheme not only can improve strength and softness, but also can reduce weight.

For a better understanding of the present utility model, the following detailed description of the technical solution of the present utility model is given with reference to fig. 1 to 4:

Compared with the prior art, the four-core structure is improved, namely, the three main wire cores 3 are added with one auxiliary wire core 4 and are changed into the three main wire cores 3 and three auxiliary wire core 4 structures, so that the cable is in a symmetrical structure, the symmetrical structure of the cable is beneficial to bending resistance and flexibility, the three auxiliary wire cores 4 are positioned in gaps outside the three main wire cores 3, the cable structure is tighter, the stress is uniform, the total outer diameter of the cable can be reduced, and the bending radius of the cable is further reduced.

The conductors of the main wire core 3 and the conductors of the auxiliary wire core 4 are changed into novel braided conductors from the traditional bundle wire compound twisted conductors, the softness of the cable is improved, the cable is more resistant to repeated bending and is not easy to break, the cable is insulated by adopting high-strength ethylene propylene rubber, and the tensile strength is improved to more than 14.0 from 6.5. In addition, the service life of the cable for the shuttle car is prolonged by using the high-strength insulating and high-strength outer sheath, specifically, the outer sheath 1 is made of a high-strength chlorinated polyethylene material, the tensile strength is improved to more than 18.0 from 11.0, the service life of the cable is directly improved by improving the performance of the material, the cable center and the main line core 3 conductor center, the auxiliary line core 4 conductor center and the cable outer sheath 1 are all provided with tensile elements composed of aramid fibers, the existing shuttle car cable uses a steel wire rope as the tensile elements, the steel wire material is harder, the rebound tendency exists after bending, the self-straightness is poor, the electromagnetic interference and the lightning attack are easy to occur, and the strength and the softness can be improved and the weight can be reduced by adopting the aramid fiber material.

In the prior art, the outer sheath reinforcing element is formed by braiding the tensile fiber rope outside the cable core or between the inner sheath and the outer sheath, and the tensile fiber rope cannot be well combined to cause sliding between materials.

The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.

Claims (10)

1. A shuttle cable, comprising: outer sheath; A cable center tensile element located at the center of the cable; A plurality of main cores are located within the outer sheath and are arranged around the circumference of the cable center tensile element, each of the main cores comprising a main core tensile element and a main core braided conductor, wherein the main core braided conductor is braided around the outer circumference of the main core tensile element; A plurality of auxiliary cores, any two adjacent main cores abut against each other and form gaps on the outside, and the auxiliary cores are respectively arranged in the plurality of gaps. 2. The shuttle cable according to claim 1, wherein the main core further comprises a main core insulation layer, and the main core insulation layer is extruded around the outer periphery of the main core braided conductor. 3 . The shuttle cable according to claim 2 , wherein the main core further comprises a copper wire shielding layer, and the copper wire shielding layer is woven around the outer periphery of the main core insulation layer. 4 . The shuttle cable according to claim 3 , wherein the central tensile element of the cable abuts against each of the copper wire shielding layers, and correspondingly, the auxiliary core abuts against two adjacent copper wire shielding layers. 5 . The shuttle cable according to claim 1 , wherein the auxiliary core comprises an auxiliary core tensile element and an auxiliary core braided conductor, and the auxiliary core braided conductor is braided around the outer periphery of the auxiliary core tensile element. 6 . The shuttle cable according to claim 5 , wherein the auxiliary core further comprises an auxiliary core insulation layer, and the auxiliary core insulation layer is extruded around the outer periphery of the auxiliary core braided conductor. 7 . The shuttle cable according to claim 5 , wherein the main core braided conductor and the auxiliary core braided conductor are both braided from Category VI conductor monofilaments. 8. The shuttle cable according to claim 1, further comprising a plurality of external tensile elements, wherein the plurality of external tensile elements are embedded in the outer sheath and are evenly spaced along the circumference of the outer sheath. 9 . The shuttle cable according to claim 8 , wherein the outer tensile element and the outer sheath are extruded integrally. 10. The shuttle cable according to claim 1, wherein the main cores and the auxiliary cores are provided in three numbers respectively; The central tensile element of the cable is made of a braided rope made of aramid fiber material.