CN217588482U

CN217588482U - Large-span overhead conductor

Info

Publication number: CN217588482U
Application number: CN202220415915.9U
Authority: CN
Inventors: 卢拥丰
Original assignee: Chongqing Motian Cable Co ltd
Current assignee: Chongqing Motian Cable Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-10-14
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a large-span overhead conductor, which comprises a conductor body (1), wherein the conductor body (1) is connected with a steel wire (2) through a connecting piece, both ends of the conductor body (1) are provided with anti-abrasion external members (4), and both ends of the steel wire (2) are provided with connectors (5); the connecting piece establishes including the cover wire body (1) is gone up and is followed a plurality of traction ring (3) that the length direction of wire body (1) distributes, every all be provided with journal stirrup (6) on traction ring (3), steel wire (2) pass all on traction ring (3) journal stirrup (6). The utility model discloses be provided with a plurality of traction rings on the wire body, establish ties through the steel wire between a plurality of traction rings, and the both ends of steel wire are then fixed on the pylon, through the fixed wire body that the steel wire can be better, prevent that waving by a wide margin and influence the normal operating of wire body appear at the wire body under strong wind weather.

Description

Large-span overhead conductor

Technical Field

The utility model relates to the technical field of cables, specifically indicate a large-span air wire.

Background

With the rapid development of Chinese economy, the demand of electricity utilization is continuously improved, and electric energy becomes a necessity for national economic development. The power plant and the power load center are usually located in different areas, the power plant is built in a place near primary energy sources such as water power and coal, electric energy can be transmitted to the load center far away from the power plant through power transmission, the development and the utilization of the electric energy exceed the limits of areas, and overhead conductor power transmission is the most common power transmission mode.

In order to reduce the number of towers to reduce installation costs, the span of overhead conductors is also increasing. However, there is a hidden danger in the large-span overhead conductor, that is, the larger the span of the overhead conductor, when the large wind is encountered, the large wind will generate a lifting force and a dragging force on the conductor, so that the conductor will show a low-frequency and large-amplitude vertical elliptical motion, i.e., waving. The galloping of the lead can cause serious abrasion of the lead, even lead to the accidents of lead fracture and tower collapse.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above-mentioned problem, provide a large-span air wire, its stability is better, can reduce the range of waving when the strong wind appears.

The purpose of the utility model is realized through the following technical scheme: a large-span overhead conductor comprises a conductor body, wherein an anti-abrasion sleeve is arranged on the conductor body, the conductor body is connected with a steel wire through a connecting piece, and two ends of the steel wire are provided with connectors; the connecting piece is established including the cover and is established on the wire body and follow a plurality of traction ring that the length direction of wire body distributes, every all be provided with the journal stirrup on the traction ring, the steel wire passes all on the traction ring the journal stirrup.

Furthermore, the anti-abrasion sleeve comprises an inner sleeve sleeved on the outer side of the lead body and an anti-abrasion outer sleeve sleeved on the outer side of the inner sleeve; the anti-abrasion outer sleeve and the inner sleeve are provided with openings, and the anti-abrasion outer sleeve is further provided with a locking component for locking the anti-abrasion outer sleeve.

The locking part comprises two locking strips, a locking bolt and a locking nut, wherein the two locking strips are respectively positioned at two sides of an opening on the anti-abrasion outer sleeve, the locking bolt is connected with the two locking strips, and the locking nut is arranged on the locking bolt.

The inner sleeve is a rubber inner sleeve, and the anti-abrasion outer sleeve is an aluminum alloy outer sleeve.

The connector comprises a U-shaped piece, a mounting bolt arranged on the U-shaped piece and a mounting nut arranged on the mounting bolt; the end of the wire body is connected with the U-shaped piece.

The wire body comprises an insulating outer sleeve, a plurality of cables arranged inside the insulating outer sleeve and a filling layer filled inside the outer sleeve.

The cable comprises a conductor and an insulating layer wrapped outside the conductor.

The distance between two adjacent traction rings is 10-15 m.

Compared with the prior art, the method has the following beneficial effects:

(1) The utility model discloses be provided with a plurality of traction rings on the wire body, establish ties through the steel wire between a plurality of traction rings, and the both ends of steel wire are then fixed on the pylon, through the fixed wire body that the steel wire can be better, prevent that waving by a wide margin from appearing and influencing the normal operating of wire body under strong wind weather for the wire body.

(2) The utility model discloses be provided with the abrasionproof at the both ends of wire body and decrease the external member, the endotheca on this abrasionproof decreases the external member is the rubber endotheca, and the abrasionproof overcoat is the aluminum alloy overcoat, consequently can provide good wearing and tearing protection for the wire body, receives wearing and tearing and fracture when preventing that the wire body from waving, prolongs the life of wire body.

(3) The utility model discloses an all be provided with the opening on endotheca and the abrasionproof overcoat to still be provided with locking part on the abrasionproof overcoat, consequently can press from both sides tight not unidimensional wire body.

(4) The utility model discloses a both ends of wire body are provided with the connector, and the convenience is fixed in the pylon with the wire body on.

Additional features of the present application will be set forth in part in the description which follows. Additional features of some aspects of the present application will be apparent to those of ordinary skill in the art in view of the following description and accompanying drawings, or in view of the production or operation of the embodiments. The features disclosed in this application may be realized and attained by practice or use of various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. Like reference symbols in the various drawings indicate like elements. Wherein the content of the first and second substances,

fig. 1 is a structural diagram of the present invention.

Fig. 2 is a cross-sectional view taken at a-a in fig. 1.

Fig. 3 is a structural diagram of the anti-wear kit of the present invention.

Fig. 4 is an enlarged schematic view of fig. 1 at B.

The reference numbers in the above figures refer to: the cable comprises a conductor body 1, a steel wire 2, a traction ring 3, an anti-abrasion sleeve 4, a connector 5, a support lug 6, an insulating outer sleeve 7, a filling layer 8, a conductor 9, an insulating layer 10, an anti-abrasion outer sleeve 11, an inner sleeve 12, a locking bolt 13, an opening 14, a locking strip 15, a mounting bolt 16 and a U-shaped piece 17.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. 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 application.

It should be noted that if the terms "first", "second", etc. are used in the description and claims of this application and in the above-described drawings, they are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, if the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", etc. are referred to, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, in this application, the terms "mounted," "disposed," "provided," "connected," "sleeved," and the like should be construed broadly if they are referred to. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Examples

As shown in fig. 1, the present embodiment discloses a large-span overhead conductor, which includes a conductor body 1 and a steel wire 2 connected to the conductor body 1 through a connector.

The steel wire 2 is used for fixing the lead body 1, the distribution direction of the steel wire is the same as that of the lead body 1, and connectors 5 are arranged at two ends of the lead body 1. When the overhead conductor is installed, the steel wire 2 is fixed on two adjacent towers through the connecting heads 5.

As shown in fig. 2, the conductor body 1 includes an insulating sheath 7, a plurality of cables disposed inside the insulating sheath 7, and a filling layer 8 filled inside the sheath 7. In addition, the cable comprises a conductor 9 and an insulating layer 10 wrapped outside said conductor 9. The insulating outer sleeve 7 is made of chloroprene rubber, the filling layer 8 is made of glass fiber, and the insulating layer 10 is made of ethylene propylene rubber.

As shown in fig. 4, the connecting head 5 includes a U-shaped member 17, a mounting bolt 16 provided on the U-shaped member 17, and a mounting nut provided on the mounting bolt 16. Specifically, the U-shaped member 17 includes a mounting plate and connecting plates respectively disposed on two sides of the mounting plate, a U-shaped bayonet is formed between the two connecting plates, and the mounting bolt 16 penetrates through the two connecting plates. During connection, the end part of the lead body 1 penetrates through the mounting plate and is locked by a nut, so that the lead body 1 can be connected with the U-shaped part 17 into a whole. When the tower is installed, the fixing rod on the tower is clamped into the U-shaped clamping opening, the mounting bolt 16 penetrates through the two mounting plates, and finally the mounting bolts are locked through the mounting nuts.

As shown in fig. 2, the connector includes a plurality of pulling rings 3 sleeved on the wire body 1, the pulling rings 3 are distributed along the length direction of the wire body 1, the number of the pulling rings can be set according to the length of the wire body 1, the distance between two adjacent pulling rings 3 is 10-15 meters, and the distance is 10 meters in this embodiment. The traction ring 3 and the insulating outer sleeve 7 of the lead body 1 in the embodiment are of an integrally molded structure.

In addition, each traction ring 3 is provided with a support lug 6, and the steel wire 2 penetrates through the support lugs 6 on all traction rings 3, so that the steel wire 2 can be used for assisting in fixing the lead body 1, and the stability of the lead body 1 is improved.

During the specific setting, the journal stirrup 6 on each traction ring 3 can set up to a plurality of, and the journal stirrup 6 on each traction ring 3 sets up to two in this embodiment, and two journal stirrups 6 symmetry respectively set up on traction ring 3, and in this kind of circumstances, the quantity of steel wire 2 also sets up to two, and one of them journal stirrup that passes on traction ring 3, another one then passes another journal stirrup, and the fixed wire body 1 that can be further like this prevents that wire body 1 from waving by a wide margin from appearing when the strong wind weather.

In addition, as shown in fig. 1, the lead body 1 is further provided with an anti-wear sleeve 4. Specifically, as shown in fig. 3, the anti-wear sleeve 4 includes an inner sleeve 12 and an anti-wear outer sleeve 11, the inner sleeve 12 is sleeved on the outer side of the wire body 1, and the anti-wear outer sleeve 11 is sleeved on the outer side of the inner sleeve 12. The outer wear-resistant sleeve 11 and the inner sleeve 12 are both provided with openings 14, and the outer wear-resistant sleeve 11 is also provided with a locking member.

As shown in fig. 3, the locking means comprises two locking strips 15 respectively located at both sides of the opening 14 in the wear sleeve 11, a locking bolt 13 connecting the two locking strips 15, and a locking nut arranged on the locking bolt 13. That is, the locking bolt 13 passes through the two locking strips 15, and when the locking nut is locked, the opening 14 is contracted, so that the inner sleeve 12 and the anti-abrasion outer sleeve 11 can clamp the lead body 1, and the anti-abrasion sleeve 4 can clamp lead bodies 1 with different sizes.

In addition, the inner sleeve 12 is a rubber inner sleeve, and the wear-resistant outer sleeve 11 is an aluminum alloy outer sleeve. During installation, the wire body 1 is installed on the insulator of the tower through the anti-abrasion sleeve piece 4, so that the wire body 1 is isolated from the insulator. When the lead body 1 slightly waves due to strong wind, the lead body 1 can be protected through the functions of the anti-abrasion sleeve 4 and the inner sleeve 12, and the lead body 1 is prevented from being abraded.

It should be noted that all of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

In addition, the above embodiments are exemplary, and those skilled in the art can devise various solutions in light of the disclosure, which are also within the scope of the disclosure and the protection scope of the present invention. It should be understood by those skilled in the art that the present specification and its drawings are illustrative and not restrictive on the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. A large-span overhead conductor, includes wire body (1), its characterized in that: the anti-abrasion sleeve (4) is arranged on the lead body (1), the lead body (1) is connected with a steel wire (2) through a connecting piece, and two ends of the steel wire (2) are provided with connectors (5); the connecting piece establishes including the cover wire body (1) is gone up and is followed a plurality of traction ring (3) that the length direction of wire body (1) distributes, every all be provided with journal stirrup (6) on traction ring (3), steel wire (2) pass all on traction ring (3) journal stirrup (6).

2. The large-span overhead conductor of claim 1, wherein: the anti-abrasion sleeve (4) comprises an inner sleeve (12) sleeved on the outer side of the lead body (1) and an anti-abrasion outer sleeve (11) sleeved on the outer side of the inner sleeve (12); the anti-abrasion wear-resistant sleeve is characterized in that the anti-abrasion outer sleeve (11) and the inner sleeve (12) are respectively provided with an opening (14), and the anti-abrasion outer sleeve (11) is further provided with a locking component used for locking the anti-abrasion outer sleeve (11).

3. The large-span overhead conductor of claim 2, wherein: the locking component comprises two locking strips (15) which are respectively positioned at two sides of an opening (14) on the anti-abrasion outer sleeve (11), a locking bolt (13) which is used for connecting the two locking strips (15) and a locking nut which is arranged on the locking bolt (13).

4. The large-span overhead conductor of claim 2 or 3, wherein: the inner sleeve (12) is a rubber inner sleeve, and the anti-abrasion outer sleeve (11) is an aluminum alloy outer sleeve.

5. The large-span overhead conductor of claim 1, wherein: the connector (5) comprises a U-shaped part (17), a mounting bolt (16) arranged on the U-shaped part (17) and a mounting nut arranged on the mounting bolt (16); the end of the lead body (1) is connected with the U-shaped piece (17).

6. The large-span overhead conductor of claim 1, wherein: the wire body (1) comprises an insulating outer sleeve (7), a plurality of cables arranged inside the insulating outer sleeve (7) and a filling layer (8) filled inside the outer sleeve (7).

7. The large-span overhead conductor of claim 6, wherein: the cable comprises a conductor (9) and an insulating layer (10) wrapped outside the conductor (9).

8. The large-span overhead conductor of claim 1, wherein: the distance between two adjacent traction rings (3) is 10-15 m.