CN111968783A

CN111968783A - Corrosion-resistant anti-distortion power cable for wind power generation

Info

Publication number: CN111968783A
Application number: CN202010681071.8A
Authority: CN
Inventors: 郭严成
Original assignee: Individual
Current assignee: Dongfeng Wire & Cable Group Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2020-11-20
Anticipated expiration: 2040-07-15
Also published as: CN111968783B

Abstract

The invention discloses a corrosion-resistant anti-distortion power cable for wind power generation, which comprises a cable body, a protective sleeve, a steel tape armor layer, a wrapping layer, a filling layer, a cable sheath, a cable core and an insulating layer, wherein the outermost layer of the cable body is provided with the protective sleeve, the inner side of the protective sleeve is provided with the steel tape armor layer, the inner side of the steel tape armor layer is provided with the wrapping layer, the inner side of the wrapping layer is wrapped with the filling layer, the filling layer is wrapped on the outer side of a central supporting sleeve, the outer side of the edge of the central supporting sleeve is provided with an offset groove, a movable wire clamping block is arranged in the offset groove, the outer side of the wire clamping block is provided with a cable groove for placing the cable core, and the outer side of the cable core. This anti-distortion power cable for corrosion-resistant wind power generation can carry out anti-distortion protection to the cable core, can realize hanging power cable's stability simultaneously.

Description

Corrosion-resistant anti-distortion power cable for wind power generation

Technical Field

The invention relates to the technical field of power cables, in particular to a corrosion-resistant anti-distortion power cable for wind power generation.

Background

The power cable is used for transmitting and distributing electric energy in the power industry, is widely applied to transmission of various electric powers, and with the rapid development of new energy, people begin to utilize solar energy, wind energy and the like to generate electricity, for example, in wind power generation, the cable is required to be used for transmitting the electric energy, but in a wind power generation area, because the environment is severe due to large wind power, the cable continuously rotates along with a fan, and strong wind blows the cable, so that the cable is easily damaged, and therefore, in the wind power generation, the performance requirement on the cable is high.

However, the conventional cable for wind power generation has the following problems in use:

1. when the wind power generation cable is used, the wind power generation cable can be twisted to a certain extent, and in a serious case, a cable core can be broken to influence the normal transmission of electric energy;

2. because the power cable used by the power generation equipment has larger size, when the power cable is hung at high altitude, the cable core is easy to be pulled, the looseness of the joint is easy to be caused, and the stable connection of the power cable is not facilitated.

Disclosure of Invention

The invention aims to provide a corrosion-resistant anti-distortion power cable for wind power generation, which aims to solve the problems that the existing cable for wind power generation in the market proposed by the background art can generate certain distortion when in use, the cable core can be broken under serious conditions, the normal transmission of electric energy is influenced, and the cable core is easy to pull when the power cable used by power generation equipment is hung at high altitude due to large size, the connection part is easy to loosen, and the stable connection of the power cable is not facilitated.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a corrosion-resistant anti-distortion power cable for wind power generation, includes cable body, protective sheath, steel band armor, parcel, filling layer, cable sheath, cable core and insulating layer, the outmost protective sheath that is provided with of cable body, and the inboard of protective sheath is provided with the steel band armor to the inboard of steel band armor is provided with the parcel, the inboard parcel on parcel has the filling layer, and the filling layer parcel supports the outside of cover at the center, the skew groove has been seted up in the edge outside that the cover was supported at the center, and the inside in skew groove is provided with mobilizable card line piece to the cable duct that is used for placing the cable core is offered in the outside of card line piece, and the outside parcel of cable core has the cable sheath.

Preferably, the central part of the central support sleeve is provided with a suspension hole for inserting the steel wire rope, the outer side of the central support sleeve is equidistantly distributed with offset grooves, and the inner lower surface of each offset groove is of an arc-shaped structure.

Preferably, the two ends of the wire clamping block are integrally formed with supporting blocks, the outer end faces of the supporting blocks are of arc chamfer structures, the supporting blocks are arranged corresponding to the reset structures on the inner side of the offset groove, the wire clamping block and the reset structures on the two ends of the wire clamping block are in a group, and each group of the wire clamping block and the reset structures on the two ends of the wire clamping block are distributed in the offset groove at equal intervals.

Preferably, the shape structure of the wire clamping block is a fan-shaped structure, the inner bottom surface of the wire clamping block is an inwards concave circular arc-shaped structure, the diameter of an inwards concave circular arc of the bottom surface of the wire clamping block is the same as the outer diameter of the offset groove, and the bottom surface of the wire clamping block and the bottom surface of the offset groove are both smooth curved surfaces.

Preferably, the both ends integrated into one piece of reduction structure has the fixed plate, and the fixed plate is connected with skew inslot wall through the screw to the both sides at reduction structure middle part are provided with circular-arc supporting part, and reduction structure is whole to be elastic stainless steel material simultaneously, reduction structure is "M" type structure.

Preferably, the upper portion of cable duct inner wall is seted up and is used for installing the sliding tray of stopper, and has seted up the spout on the inner wall of sliding tray to the inside of spout is provided with gliding slider from top to bottom, and slider integrated into one piece is in the both sides of stopper simultaneously.

Preferably, the outer side surface of the limiting block is of a convex spherical structure, and the outer end of the convex spherical structure on the limiting block protrudes out of the sliding groove.

Preferably, the mounting structure of stopper is sliding construction from top to bottom, and is provided with the spring between the up end of stopper and the top of sliding tray to the stopper symmetry sets up the both sides at the cable duct inner wall.

Compared with the prior art, the invention has the beneficial effects that: the anti-distortion power cable for the corrosion-resistant wind power generation can perform anti-distortion protection on a cable core and can realize stable suspension of the power cable;

1. the cable comprises a cable body, a central support sleeve and a reset structure, wherein an offset groove is formed in the outer side of the central support sleeve in the cable body, the offset groove is connected with a wire clamping block in a matched mode, a cable groove is formed in the outer side of the wire clamping block, the cable is placed, support blocks are arranged on two sides of the wire clamping block, the support blocks are connected with a support part in the middle of the reset structure in a matched mode, when the cable body is distorted, the wire clamping block is offset in the offset groove, and after distortion acting force is lost, the support part in the middle of the reset structure has an elastic effect, and the reset of the wire clamping block is achieved;

2. the middle part of the central support sleeve is provided with the suspension hole, and the cable body can be supported and suspended through the steel rope inserted in the suspension hole, so that the cable body can be suspended and supported, meanwhile, the looseness of the joints at the two ends of the cable body due to the gravity of the cable body can be avoided, and the stable connection of the cable body is realized;

3. the sliding groove is formed in the upper portion of the two sides of the inner wall of the cable groove, the effect of installing the limiting block is achieved, the effect of clamping the cable sheath placed on the cable core inside the cable groove can be achieved, and then the wrapping layer and the filling layer are convenient to wrap the outside winding of the central support sleeve.

Drawings

FIG. 1 is a schematic cross-sectional view of a cable body of an anti-twisting power cable for corrosion-resistant wind power generation according to the present invention;

FIG. 2 is an enlarged schematic structural view of a point A in FIG. 1 of the anti-corrosion anti-twisting power cable for wind power generation according to the present invention;

FIG. 3 is an enlarged schematic structural view of a point B in FIG. 2 of the anti-corrosion anti-twisting power cable for wind power generation according to the present invention;

FIG. 4 is a schematic view of a partial top-down structure of a wire clamping block of the anti-corrosion anti-twisting power cable for wind power generation according to the present invention;

FIG. 5 is a schematic top view of the center support sleeve, the offset groove and the wire clamping block of the anti-corrosion anti-twisting power cable for wind power generation according to the present invention;

fig. 6 is an enlarged structural view of point C in fig. 5 of the corrosion-resistant anti-twisting power cable for wind power generation according to the present invention.

In the figure: 1. a cable body; 2. a protective sleeve; 3. a steel tape armor layer; 4. a wrapping layer; 5. a filling layer; 6. a central support sleeve; 7. a hanging hole; 8. an offset slot; 9. a wire clamping block; 10. a support block; 11. a reset structure; 12. a fixing plate; 13. a cable trough; 14. a cable sheath; 15. a cable core; 16. a sliding groove; 17. a spring; 18. a limiting block; 19. a limiting bulge; 20. a chute; 21. a slider; 22. a screw; 23. a support portion; 24. an insulating layer.

Detailed Description

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a corrosion-resistant anti-distortion power cable for wind power generation comprises a cable body 1, a protective sleeve 2, a steel strip armor layer 3, a wrapping layer 4, a filling layer 5, a central support sleeve 6, a suspension hole 7, an offset groove 8, a wire clamping block 9, a supporting block 10, a reset structure 11, a fixing plate 12, a cable groove 13, a cable sheath 14, a cable core 15, a sliding groove 16, a spring 17, a limiting block 18, a limiting bulge 19, a sliding groove 20, a sliding block 21, a screw 22, a supporting part 23 and an insulating layer 24, wherein the outermost layer of the cable body 1 is provided with the protective sleeve 2, the inner side of the protective sleeve 2 is provided with the steel strip armor layer 3, the inner side of the steel strip armor layer 3 is provided with the wrapping layer 4, the inner side of the wrapping layer 4 is wrapped with the filling layer 5, the filling layer 5 is wrapped on the outer side of the central support sleeve 6, the edge outer side of the central support sleeve 6 is provided with, and the outside of card line piece 9 is seted up and is used for placing cable core 15's cable duct 13, and the outside parcel of cable core 15 has cable sheath 14.

The center part that the cover 6 was supported in the center sets up the hole 7 that suspends in midair that alternates wire rope, and the outside equidistance that the cover 6 was supported in the center distributes and have skew groove 8, and the interior low side of skew groove 8 is circular-arc structure, sets up like this and can realize supporting the suspension of cable body 1, is favorable to the stable connection to cable body 1.

The two ends of the wire clamping block 9 are integrally formed with supporting blocks 10, the outer end face of each supporting block 10 is of an arc chamfer structure, the supporting blocks 10 are arranged corresponding to the reset structures 11 on the inner side of the offset groove 8, the wire clamping block 9 and the reset structures 11 on the two ends are in a group, each group is distributed in the offset groove 8 at equal intervals, the shape structure of the wire clamping block 9 is of a fan-shaped structure, the inner bottom face of the wire clamping block 9 is of an inwards concave arc structure, the diameter of the inwards concave arc of the bottom face of the wire clamping block 9 is the same as the outer diameter of the offset groove 8, the bottom face of the wire clamping block 9 and the bottom face of the offset groove 8 are both arranged in a smooth curved surface manner, the two ends of the reset structures 11 are integrally formed with fixing plates 12, the fixing plates 12 are connected with the inner wall of the offset groove 8 through screws 22, arc supporting parts 23 are arranged on the two, reset structure 11 is "M" type structure, sets up like this and plays when the distortion takes place for cable body 1, can realize that cable core 15 produces certain skew, plays the effect of carrying out the antitorque protection to cable core 15, avoids cable core 15's fracture.

The upper portion of the inner wall of the cable groove 13 is provided with a sliding groove 16 for installing a limiting block 18, the inner wall of the sliding groove 16 is provided with a sliding groove 20, a sliding block 21 capable of sliding up and down is arranged inside the sliding groove 20, meanwhile, the sliding block 21 is integrally formed on two sides of the limiting block 18, the outer side face of the limiting block 18 is of a convex spherical structure, the outer end of the convex spherical structure on the limiting block 18 protrudes out of the sliding groove 16, the installation structure of the limiting block 18 is of a vertical sliding structure, a spring 17 is arranged between the upper end face of the limiting block 18 and the top of the sliding groove 16, and the limiting block 18 is symmetrically arranged on two sides of the inner wall of the cable groove 13, so that the cable core 15 placed inside the cable groove 13 is limited, and the cable core 15 is prevented from moving out of.

The working principle is as follows: when the corrosion-resistant anti-distortion power cable for wind power generation is used, as shown in fig. 1 and fig. 3, two ends of a steel wire rope suspended in a hole 7 in a cable body 1 are fixed in a reserved hole of equipment to be connected or connected out, then a cable core 15 is connected with a corresponding terminal, so that the connection of the cable body 1 can be completed, as shown in fig. 1-2 and fig. 5-6, when the cable body 1 rotates and distorts, a certain dislocation movement can occur among a protective sleeve 2, a steel tape armor layer 3, a wrapping layer 4, a filling layer 5 and a central support sleeve 6 outside the cable body 1, meanwhile, the bottom of a wire clamping block 9 can move in an offset groove 8 at the outer end of the central support sleeve 6, a support block 10 at one side of the wire clamping block 9 can push a support part 23 at the middle part of a reset structure 11, and the support part 23 deforms after being extruded, the wire clamping block 9 drives the cable core 15 to move through the cable groove 13, the wire clamping block 9 slides to drive the cable core 15 to move along with the cable core, the distortion of the cable core 15 is avoided, and after the cable body 1 loses the external distortion force effect, as shown in fig. 2 and fig. 6, the supporting part 23 in the middle of the reset structure 11 resets under the action of self elastic force, and pushes the supporting block 10 on one side of the wire clamping block 9, so that the bottom of the wire clamping block 9 is driven to move and reset in the offset groove 8 at the outer end of the central supporting sleeve 6;

as shown in fig. 2-3 and 4, when the cable core 15 is placed inside the cable groove 13, the cable sheath 14 outside the cable core 15 extrudes the limiting block 18, the limiting block 18 moves in the sliding groove 20 through the sliding blocks 21 on both sides of the limiting block 18, after the cable core 15 completely enters the cable groove 13, the spring 17 on the top of the sliding groove 16 pushes the limiting block 18 downwards, and the limiting protrusion 19 outside the limiting block 18 extrudes the cable sheath 14 outside the cable core 15, thereby limiting the cable core 15.

It should be understood that the terms "central," "longitudinal," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, that the present invention is used with reference to the particular orientation or position shown in the drawings, that the standard components used in the present invention are commercially available, that the specific components are custom-made from the specification and drawings, that the specific connections between the various components are made by conventional means such as bolts, rivets, welding, etc., that the machines, components and devices are well known in the art, the conventional model, together with the circuit connections, are conventional in the art and will not be described in detail here.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes, modifications, equivalents, and improvements may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a corrosion-resistant anti-distortion power cable for wind power generation, includes cable body (1), protective sheath (2), steel band armor (3), parcel layer (4), filling layer (5), cable sheath (14), cable core (15) and insulating layer (24), its characterized in that: the outmost protective sheath (2) that is provided with of cable body (1), and the inboard of protective sheath (2) is provided with steel band armor (3) to the inboard of steel band armor (3) is provided with parcel layer (4), the inboard parcel of parcel layer (4) has filling layer (5), and filling layer (5) parcel is in the outside of center support cover (6), skew groove (8) have been seted up in the edge outside of center support cover (6), and the inside in skew groove (8) is provided with mobilizable card line piece (9) to cable duct (13) that are used for placing cable core (15) are seted up in the outside of card line piece (9), and the outside parcel of cable core (15) has cable crust (14).

2. The corrosion-resistant anti-twisting power cable for wind power generation according to claim 1, wherein: the center of the center support sleeve (6) is provided with a suspension hole (7) which is inserted with a steel wire rope, the outer side of the center support sleeve (6) is equidistantly distributed with an offset groove (8), and the inner low surface of the offset groove (8) is of an arc-shaped structure.

3. The corrosion-resistant anti-twisting power cable for wind power generation according to claim 1, wherein: the wire clamping block is characterized in that supporting blocks (10) are integrally formed at two ends of the wire clamping block (9), the outer end faces of the supporting blocks (10) are of arc chamfer structures, the supporting blocks (10) correspond to the reset structures (11) on the inner sides of the offset grooves (8), the wire clamping block (9) and the reset structures (11) at the two ends of the wire clamping block are in a group, and each group of wire clamping blocks is distributed in the offset groove (8) at equal intervals.

4. The corrosion-resistant anti-twisting power cable for wind power generation according to claim 1, wherein: the shape structure of card line piece (9) is fan-shaped structure, and the interior bottom surface of card line piece (9) is the circular-arc structure of indent to the circular arc diameter of card line piece (9) bottom surface indent is the same with the external diameter in skew groove (8), and the bottom surface of card line piece (9) is smooth curved surface setting with the bottom surface in skew groove (8) simultaneously.

5. The corrosion-resistant anti-twisting power cable for wind power generation as claimed in claim 3, wherein: the two ends of the reset structure (11) are integrally formed with fixing plates (12), the fixing plates (12) are connected with the inner wall of the offset groove (8) through screws (22), arc-shaped supporting portions (23) are arranged on the two sides of the middle of the reset structure (11), the reset structure (11) is integrally made of elastic stainless steel, and the reset structure (11) is of an M-shaped structure.

6. The corrosion-resistant anti-twisting power cable for wind power generation according to claim 1, wherein: the upper portion of cable duct (13) inner wall is seted up and is used for installing sliding tray (16) of stopper (18), and has seted up spout (20) on the inner wall of sliding tray (16) to the inside of spout (20) is provided with gliding slider (21) from top to bottom, and slider (21) integrated into one piece is in the both sides of stopper (18) simultaneously.

7. The corrosion-resistant anti-twisting power cable for wind power generation as claimed in claim 6, wherein: the outer side surface of the limiting block (18) is of a convex spherical structure, and the outer end of the convex spherical structure on the limiting block (18) protrudes out of the sliding groove (16).

8. The corrosion-resistant anti-twisting power cable for wind power generation as claimed in claim 6, wherein: the mounting structure of stopper (18) is upper and lower sliding structure, and is provided with spring (17) between the up end of stopper (18) and the top of sliding tray (16) to stopper (18) symmetry sets up the both sides at cable duct (13) inner wall.