CN207499571U - A kind of halberd forked type tower head of single loop tangent tower - Google Patents

Abstract

The utility model is related to a kind of halberd forked type tower heads of single loop tangent tower, belong to power tower technical field.The halberd forked type tower head of a kind of single loop tangent tower, including being bolted to connection the earth wire support for tower head, cranking arm on two, lower bent lever and two side cross-arms；The lower bent lever is to form class V-shaped by two bearing diagonals, angle between two bearing diagonals of lower bent lever is obtuse angle, it cranks arm on two and is separately fixed at the upper end of two bearing diagonals of lower bent lever, two side cross-arms are fixed on the lateral surface of two bearing diagonal lower ends of lower bent lever, and earth wire support is fixed on the top cranked arm.Utility model optimize tower head structure, by design class V-shaped lower bent lever and on crank arm, reduce earth wire support height.Path of Force Transfer of cranking arm in the utility model is more clear, rationally.The line corridor width of the utility model is smaller, overall weight is lighter, and reasonable structural arrangement, tower head overall structure is stablized, and has good economic advantages.

Description

A kind of halberd forked type tower head of single loop tangent tower

Technical field

The utility model is related to a kind of halberd forked type tower heads of single loop tangent tower, belong to power tower technical field.

Background technology

The tower head of current single loop tangent tower, the pattern of the especially tower head of 750kV single loops tangent tower use mostly Wine glass-shaped is as shown in Figure 1 or cathead is as shown in Figure 2.Both tangent tower tower head patterns respectively have advantage and disadvantage.In contrast, wineglass Type tangent tower conducting wire is horizontally arranged, it is identical exhale height in the case of, steel tower overall height is relatively low, tower weight it is more economical, but occupancy width of corridor It is larger；The vertical triangle arrangement of cathead tangent tower conducting wire, tower head is higher, and structure stress is relative complex, and tower weight is heavier, but occupies Corridor width is smaller.

Utility model content

The purpose of this utility model is to provide a kind of single loop straight line simple in structure, occupied space is few, bearing capacity is strong The halberd forked type tower head of tower.

To achieve these goals, the technical solution adopted in the utility model is：

The halberd forked type tower head of a kind of single loop tangent tower, including being bolted to connection the earth wire support for tower head, two It cranks arm on a, lower bent lever and two side cross-arms；The lower bent lever is to form class V-shaped by two bearing diagonals, the two of lower bent lever Angle between a bearing diagonal is obtuse angle, cranks arm on two and is separately fixed at the upper end of two bearing diagonals of lower bent lever, two side horizontal strokes Load is fixed on the lateral surface of two bearing diagonal lower ends of lower bent lever, and earth wire support is fixed on the top cranked arm.

Technical solutions of the utility model further improvement lies in that：On crank arm for lattice column arrange, the width above cranked arm Degree becomes larger from top to bottom.

Technical solutions of the utility model further improvement lies in that：The earth wire support for being fixed on upper end of cranking arm is beak Shape, two rostriform protrusions of earth wire support are backwards to outside.

Technical solutions of the utility model further improvement lies in that：Side cross-arm is isosceles triangle.

Technical solutions of the utility model further improvement lies in that：Angle between two bearing diagonals of lower bent lever is 120 ° ~150 °.

Technical solutions of the utility model further improvement lies in that：Earth wire support, on crank arm, lower bent lever and side cross-arm it is equal Molding is bolted using angle steel as rod piece and use.

By adopting the above-described technical solution, the technique effect that the utility model obtains has：

The utility model by set V-shaped lower bent lever and on crank arm, reduce earth wire support height.This practicality is new Path of Force Transfer of cranking arm in type is more clear, rationally, and tower head overall structure is stablized.

Angle between two bearing diagonals of the lower bent lever of the utility model is obtuse angle, and be set as 120 °~150 °, The height of tower head can be reduced and improve the stability of tower head.

The utility model tower head height is low, tower body is light, width of corridor is small, has good comprehensive performance.

Description of the drawings

Fig. 1 is wine glass-shaped tower head schematic diagram；

Fig. 2 is cathead tower head schematic diagram；

Fig. 3 is the utility model front view；

Fig. 4 is each exploded state schematic diagram of the utility model；

Fig. 5 is the utility model use state stereoscopic schematic diagram；

Fig. 6 is the utility model and tower body bonding state schematic diagram；

Wherein, 1, earth wire support, 2, on crank arm, 3, lower bent lever, 4, side cross-arm.

Specific embodiment

Below in conjunction with the accompanying drawings and specific embodiment is described in further details the utility model：

The utility model discloses a kind of halberd forked type tower heads of single loop tangent tower, belong to a part for electric power pylon, tool Saying for body is a kind of single loop tangent tower, especially a kind of 750kV single loops tangent tower.

The halberd forked type tower head of the single loop tangent tower of the utility model is fixed on the tower body top of tangent tower, the tower head packet Crank arm on earth wire support 1, two 2, lower bent lever 3 and two side cross-arms 4 are included, above-mentioned each component is molded using rod piece connection, on It states and is bolted to connection between each component as whole tower head.

Lower bent lever 3 is the structure that class V-shaped is formed by two bearing diagonals in the utility model, and two of lower bent lever 3 tiltedly prop up Angle between the support bigger compared with " V " word, the angle between two bearing diagonals of lower bent lever 3 is obtuse angle, preferential by lower song Angle between two bearing diagonals of arm 3 is 120 °~150 °, and two bearing diagonals are symmetrical arranged, concrete structure such as Fig. 3, Fig. 4, figure 5th, shown in Fig. 6.

It cranks arm on two in the utility model the upper ends of 2 two bearing diagonals for being separately fixed at lower bent lever 3, cranks arm on two 2 are symmetrical arranged.Two side cross-arms 4 are fixed on the lateral surface of 3 two bearing diagonal lower ends of lower bent lever, and two side cross-arms 4 are symmetrical arranged. Earth wire support 1 be fixed on crank arm 2 top, therefore two earth wire supports are also symmetrical arranged, concrete structure such as Fig. 3, Fig. 4, Fig. 5, Shown in Fig. 6.It cranks arm and 2 is arranged for lattice column in specific implement, 2 width of above cranking arm becomes larger from top to bottom, The preferential structure that side cross-arm 4 is set as to isosceles triangle, concrete structure are as shown in Figure 4.

Earth wire support 1 in the utility model be integrally fixed at crank arm 2 upper end, be particularly fixed on and crank arm 2 The lateral surface of upper end.Earth wire support 1 is beak-like, and concrete structure is as shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, rostriform earth wire support With protrusion, two 1 rostriform protrusions of earth wire support are backwards to outside.

Earth wire support 1 in the utility model, on crank arm 2, lower bent lever 3 and side cross-arm 4 uses angle steel as rod piece And use is bolted molding.Wherein the material of angle steel is Q235, Q345 or Q420, and the connection mode between rod piece is bolt company It connects, bolt specification and material are M16（6.8 grade）、M20（8.8 grade）、M24（8.8 grade）.

As shown in figure 3, on the utility model on earth wire support 1 set ground wire hanging point A, above crank arm 2 top setting on lead Line hanging point B goes here and there for hanging V, the conducting wire hanging point C in the end set of cross-arm 4.

The utility model optimize tower head structure, by design class V-shaped lower bent lever and on crank arm, reduce ground wire Support height.Path of Force Transfer of cranking arm in the utility model is more clear, rationally, is inherited cathead tangent tower tower conducting wire and is hung down The advantages of rectangular triangle arranges, line corridor width is smaller and wine glass-shaped tangent tower tower weight is lighter, reasonable structural arrangement, tower head Overall structure is stablized.

The halberd forked type tower head of the utility model overcomes that cat-head transmission tower tower head is high, tower is heavy and wineglass tower cross-arm is long, corridor The shortcomings that wide, the scope of application are wider.The utility model compared with conventional wine glass-shaped tangent tower, line corridor width reduce 7~ 10m, Dan Jita reduce 2%~4% again, and iron tower foundation active force reduces by 5%~7%, with economy and stability.

It is the utility model stable structure, light-weight, material can be saved, initial cost can be reduced, there is good economy Advantage.

Claims (6)

1. a kind of halberd forked type tower head of single loop tangent tower, it is characterised in that：Including being bolted to connection the ground for tower head Line bracket（1）, crank arm on two（2）, lower bent lever（3）And two side cross-arms（4）；The lower bent lever（3）By two bearing diagonals Form class V-shaped, lower bent lever（3）Two bearing diagonals between angle for obtuse angle, crank arm on two（2）It is separately fixed at lower song Arm（3）The upper end of two bearing diagonals, two side cross-arms（4）It is fixed on lower bent lever（3）The lateral surface of two bearing diagonal lower ends, ground wire Stent（1）It is fixed on and cranks arm（2）Top.

2. a kind of halberd forked type tower head of single loop tangent tower according to claim 1, it is characterised in that：On crank arm（2）For Lattice column is arranged, is above cranked arm（2）Width become larger from top to bottom.

3. a kind of halberd forked type tower head of single loop tangent tower according to claim 1, it is characterised in that：It is fixed on and cranks arm （2）The earth wire support of upper end（1）For beak-like, two earth wire supports（1）Rostriform protrusion is backwards to outside.

4. a kind of halberd forked type tower head of single loop tangent tower according to claim 1, it is characterised in that：Side cross-arm（4）For Isosceles triangle.

5. a kind of halberd forked type tower head of single loop tangent tower according to claim 1, it is characterised in that：Lower bent lever（3）'s Angle between two bearing diagonals is 120 °~150 °.

6. according to a kind of halberd forked type tower head of single loop tangent tower of Claims 1 to 5 any one of them, it is characterised in that：Ground Line bracket（1）, on crank arm（2）, lower bent lever（3）And side cross-arm（4）It is bolted into using angle steel as rod piece and use Type.