CN203660469U

CN203660469U - Novel cone cable clamp

Info

Publication number: CN203660469U
Application number: CN201320712658.6U
Authority: CN
Inventors: 刘汝斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-13
Filing date: 2013-11-13
Publication date: 2014-06-18
Anticipated expiration: 2023-11-13

Abstract

The utility model provides a novel cone cable clamp which is simple in manufacturing process, low in cost, and capable of improving pulling force. The novel cone cable clamp comprises a cone core base and a cone core located in the cone core base. The cone core base is a cylinder with a central hole, the cone core is located in the central hole, and one end of the cone core extends out of the central hole. The cone core is a cylinder with internal conical holes. The end, extending out of the central hole, of the cone core is a small end, the other end of the cone core is a large end, and the aperture of the conical hole of the small end is larger than that of the conical hole of the large end, and threads are formed in the conical hole of the large end. The core cable clamp is reasonable in design, simple in manufacturing process and low in cost, reliability and clamping force of a carbon fiber composite aluminum twisted wire strain clamp are greatly improved, and the conical cable clamp is easy and convenient to operate, convenient to construct and capable of lowering labor intensity of construction.

Description

A kind of new Cone wire clamp

Technical field

The utility model relates to a kind of wire clamp, and especially a kind of reliability is high, design new Cone wire clamp cleverly.

Background technology

Strain clamp is for fixing cord, to bear wire tension, and wire hung to the gold utensil on strain insulator-string or tower bar.In electric power system, it is connected wire with insulator string, and insulator string is connected with steel tower again, to carry the pulling force of wire, reduces the sag of wire, and the safe operation of electric power system is played to very important effect.Current domestic transmission line all adopts steel reinforced aluminium conductor, has following defect: the one, and easily produce magnetic hysteresis and damage, consume electric energy; The 2nd, contact-making surface is less, peg graft uneven, and easily heating, grip shakiness; The 3rd, through explosion crimping, because powerful impulsive force has changed metallographic, reduce mechanical strength, construct dangerous.

The proportion of carbon fibre composite is 1/4 of steel, intensity is steel 2 times, coefficient of linear expansion is steel 1/10.Due to its excellent mechanical characteristic and thermal stability, be first applied to space flight, airborne vehicle and the weapon loss of weight of military field; Subsequently for the equipment of civil aircraft, athletics sports.Along with the solution of carbon fiber mass production techniques, the decline of price, carbon fibre composite starts to enter industry and sphere of life.

For a long time, overhead transmission line conductor mainly adopts steel reinforced aluminium conductor and Related product, and the develop rapidly of power industry is had higher requirement to overhead transmission line conductor, impels various countries scientific and technical personnel to research and develop various novel conductive wires.In late 1990s, people start to attempt to replace metal material to make the core of wire with composite material, improve the sag characteristic of wire, to improve circuit transmission capacity.

Carbon fiber composite core wire is as a kind of novel conductive wire, is characterized in lightweight, coefficient of linear expansion is little, and by the wire of its making, the wire weight of same nominal sectional area is lighter, or the wire nominal area of section of identical weight is larger; Ampacity, maximum operating temperature, conductance and the tensile strength etc. of this compound wire improve, and degree of speeding, induction heating, electromagnetic field intensity and line loss etc. all decrease.The mechanics of carbon fiber composite core wire, calorifics and electrology characteristic are all better than conventional wires, it is a kind of energy-saving capacity-improving conducting wires of brand new, compared with conventional wires, have lightweight, intensity is large, the good thermal coefficient of expansion of heat resistance is little, high temperature sag is little, conductivity is high, line loss is low, ampacity is large, corrosion resistance and good and be difficult for the series of advantages such as icing, comprehensively solve every technical bottleneck that overhead power transmission field exists, can be widely used in old circuit, power station bus and substation bus bar capacity-increasing transformation, new line is built, and can be used for large leap, large drop, the circuit of the special climate such as heavy icing area and high pollution and geographical occasion.Therefore, carbon fiber composite core wire has obvious economic worth and social benefit in the transformation of newly-built electric power transmission line or old circuit.

But the existing strain clamp for steel reinforced aluminium conductor is not also suitable for this kind of NEW TYPE OF COMPOSITE wire, therefore, need to design a kind of new strain clamp with the described carbon fiber composite conductor of adaptation.

Utility model content

The utility model provides that a kind of manufacturing process is simple, cost is low, has improved the new Cone wire clamp of pulling force.

Realize a kind of new Cone wire clamp of the utility model object, comprise cone core print seat and the cone core that is positioned at cone core print seat; Described cone core print seat is the cylinder with centre bore, and described cone core is positioned at centre bore, and stretch out outside centre bore one end; Described cone core is provided with the cylinder of bellmouth in being, what described cone core stretched out one end outside centre bore is small end, and the other end be to hold greatly; The aperture of the bellmouth of described small end is greater than the aperture of the bellmouth of large end, in the bellmouth of described large end, is provided with screw thread.

The tapering of described bellmouth is 2.5 degree.

The large 0.2mm in aperture of the bellmouth of the large end of aperture ratio of the bellmouth of small end.

The length of described screw thread is 15mm.

Fillet is led in the bellmouth outside of described small end.

The beneficial effect of a kind of new Cone wire clamp of the present utility model is as follows:

A kind of new Cone wire clamp of the present utility model, reasonable in design, manufacturing process is simple, cost is low; Greatly improved reliability and the clamping force of carbon fiber clad aluminum twisted wire strain clamp, easy and simple to handle, easy construction, reduces construction labour intensity.

Brief description of the drawings

Fig. 1 is the structural representation of a kind of new Cone wire clamp of the present utility model.

Embodiment

As shown in Figure 1, a kind of new Cone wire clamp of the present utility model, comprises cone core print seat 1 and the cone core 2 that is positioned at cone core print seat 1; Described cone core print seat 1 is the cylinder with centre bore, and described cone core 2 is positioned at centre bore, and stretch out outside centre bore one end; Described cone core 2 is provided with the cylinder of bellmouth 3 in being, what described cone core 2 stretched out one end outside centre bore is small end, and the other end be to hold greatly; The aperture of the bellmouth 3 of described small end is greater than the aperture of the bellmouth 3 of large end, in the bellmouth 3 of described large end, is provided with screw thread 4.

The tapering of described bellmouth 3 is 2.5 degree.The large 0.2mm in aperture of the bellmouth 3 of the large end of aperture ratio of the bellmouth 3 of small end.The length of described screw thread 4 is 15mm.Fillet is led in bellmouth 3 outsides of described small end.

The operation principle of a kind of new Cone wire clamp of the present utility model is as follows:

A kind of new Cone wire clamp of the present utility model is subject to External Force Acting to make cone core in cone core print seat slides forwards, the centripetal contraction of cone core simultaneously, and cone in-core side contacts generation frictional force carbon fiber core is clamped with carbon fiber core.

A kind of new Cone wire clamp of the present utility model has reduced the frictional force of cone core and cone core print seat, strengthens the frictional force of cone core and carbon fiber core.

Embodiment recited above is described preferred implementation of the present utility model; not scope of the present utility model is limited; design under spiritual prerequisite not departing from the utility model; various distortion and improvement that the common engineers and technicians in this area make technical solutions of the utility model, all should fall in the definite protection range of claims of the present utility model.

Claims

1. a new Cone wire clamp, is characterized in that: comprise cone core print seat and the cone core that is positioned at cone core print seat; Described cone core print seat is the cylinder with centre bore, and described cone core is positioned at centre bore, and stretch out outside centre bore one end; Described cone core is provided with the cylinder of bellmouth in being, what described cone core stretched out one end outside centre bore is small end, and the other end be to hold greatly; The aperture of the bellmouth of described small end is greater than the aperture of the bellmouth of large end, in the bellmouth of described large end, is provided with screw thread.

2. a kind of new Cone wire clamp according to claim 1, is characterized in that: the tapering of described bellmouth is 2.5 degree.

3. a kind of new Cone wire clamp according to claim 1 and 2, is characterized in that: the large 0.2mm in aperture of the bellmouth of the large end of aperture ratio of the bellmouth of small end.

4. a kind of new Cone wire clamp according to claim 1 and 2, is characterized in that: the length of described screw thread is 15mm.

5. a kind of new Cone wire clamp according to claim 1 and 2, is characterized in that: fillet is led in the bellmouth outside of described small end.