CN205713396U - Attachment means for power transmission tower - Google Patents

Abstract

The utility model provides a connection device for a power transmission tower. Wherein, the device includes: tower body main material, transverse material and first connecting plate; wherein, tower body main material includes first tower body main material section and second tower body main material section arranged linearly; The main material of the cross arm and the horizontal material of the partition are arranged linearly; the main material of the tower body and the horizontal material are connected to the connecting plate, and the main material of the tower body and the horizontal material are arranged at an angle, and the first connecting plate is a fire Curved plate; there is a preset distance between the right edge of the main material of the tower body and the fire curve of the first connecting plate; the second connecting plate is connected to the fire curve of the first connecting plate. In the utility model, the main material of the tower body becomes a part of the tower head, and directly transmits force downwards, so that the effect of force transmission is better; The two limbs are connected, the force transmission is uniform, and there is no need to consider the strength reduction; the short angle steel attached to the main material of the cross-arm is eliminated, the specification of the main material of the cross-arm is reduced, and waste is avoided.

Description

Connecting devices for transmission towers

technical field

The utility model relates to the technical field of power transmission lines, in particular to a connection device for power transmission towers.

Background technique

With the rapid development of the economy, the distance between the power source and the load center is gradually increasing, and the high-efficiency, energy-saving, safe and reliable UHV transmission technology is more and more widely used.

In the UHV DC transmission line, the length of the straight tower is long, and the cross arm bears a large torque under the condition of disconnection, so the internal force of the plane main material under the cross arm is very large. Refer to 1. In order to match the rigidity of the main material of the cross-arm, it is necessary to appropriately increase the specification of the main material 1' of the tower body. On the material 1', the oblique material 5' is connected with the gusset plate 4' through bolts, and the gusset plate 4' needs to be pasted with short angle steel with the same specifications as the main material 2' of the cross arm, so that the weight of the tower head is increased; the main body of the tower Material 1' runs through the connection between the main material 2' of the cross arm and the tower body, and breaks in 1 to 2 nodes below the lower plane of the cross arm, and the main material 2' of the cross arm and the cross material 3' of the partition On both sides of the main material 1', the tower head is not a whole, resulting in poor force transmission effect. In addition, the main material 2' of the cross arm and the cross material 3' of the partition and the gusset plate 4' are all connected by a single limb, which has eccentricity and uneven force transmission. The design needs to consider the strength reduction, which makes the specification larger. cause waste.

Utility model content

In view of this, the utility model proposes a connection device for transmission towers, aiming to solve the problems that the existing design method of connection plates will lead to excessive weight of the tower head, poor force transmission effect and waste caused by enlarged specifications.

In one aspect, the utility model proposes a connecting device for a power transmission tower, which includes: a main tower body material, a transverse material, and a first connecting plate; wherein, the main tower body material includes first linearly arranged The tower body main material section and the second tower body main material section; the cross member includes a horizontal arm main material and a partition cross material arranged linearly; the tower body main material and the cross member are connected to the first A connecting plate, and the main tower body material and the cross member are set at an angle, and the partition cross member is located on the left side of the tower body main material, and the cross arm main material is located on the tower On the right side of the body main material, the first connecting plate is a fire curved plate; there is a preset distance between the right edge of the tower body main material and the fire curve of the first connecting plate; the second connecting plate is connected to the at the fire curve of the first connecting plate.

Further, in the above connection device for transmission towers, the fire curve angle of the first connection plate Wherein, B1 is the inner width of the lower plane of the cross arm, B2 is the outer width of the lower plane of the cross arm, and L is the length of the cross arm.

Further, in the above connection device for transmission towers, the preset distance is 9-11 mm.

Further, in the above connection device for power transmission towers, the main tower body material is arranged perpendicular to the cross member; and, the first tower body main material section and the second tower body main material section There is a preset gap between the sections, and one end of the partition cross member extends into the gap between the first tower body main material section and the second tower body main material section in the tower body main material.

Further, the above-mentioned connecting device for a power transmission tower further includes: a second connecting plate; wherein, the second connecting plate is vertically connected to the first connecting plate, and the second connecting plate is located at the Between the main material of the body and the main material of the cross arm.

Further, in the above connection device for transmission towers, the main material section of the first tower body and the main material section of the second tower body are both angle steel; one limb of the main material section of the first tower body and One leg of the main material of the second tower body is connected to the first connecting plate, and the other leg is connected to the second connecting plate.

Further, the above connecting device for transmission towers further includes: a third connecting plate; wherein, the third connecting plate is vertically connected to the first connecting plate and the second connecting plate, and the third connecting plate The connecting plate is located on the left side of the tower body main material and below the partition cross member.

Further, in the above connecting device for transmission towers, the partition cross member is an angle steel; one leg of the partition cross member is connected to the first connecting plate, and the other leg is connected to the third connecting plate connect.

Further, the above connecting device for transmission towers further includes: a fourth connecting plate; wherein, the fourth connecting plate is vertically connected to the first connecting plate and the second connecting plate, and the fourth connecting plate The connecting plate is located on the right side of the main material of the tower body and below the main material of the cross arm.

Further, in the above connecting device for transmission towers, the main material of the cross arm is angle steel; one limb of the main material of the cross arm is connected to the first connecting plate, and the other leg is connected to the fourth connecting plate connect.

In the utility model, the main material of the tower body is divided into the main material section of the first tower body and the main material section of the second tower body, and the transverse material of the partition is extended into the main material section of the first tower body and the main material of the second tower body. The preset gap between the sections makes the main material of the tower body a part of the tower head, and directly transmits force downwards, making the force transmission effect better; The connection method is double-leg connection, there is no eccentricity, the force transmission is uniform, and there is no need to consider the strength reduction; the main material of the cross-arm is eliminated from the short angle steel, which reduces the specification of the main material of the cross-arm and avoids waste.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating preferred embodiments, and are not considered to limit the present invention. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

Fig. 1 is a schematic structural diagram of a connecting device used for transmission towers in the prior art;

Fig. 2 is a schematic diagram of the position of the connection device for the transmission tower in the transmission tower;

Fig. 3 is a structural schematic diagram of a connection device for a power transmission tower provided by an embodiment of the present invention;

Fig. 4 is a schematic front view of a connection device for a power transmission tower provided by an embodiment of the present invention;

Fig. 5 is a schematic side view of a connection device for a transmission tower provided by an embodiment of the present invention;

Fig. 6 is a bottom view of the connection device for the transmission tower provided by the embodiment of the present invention;

FIG. 7 is a schematic diagram of the cross arm in the direction B of the transmission tower shown in FIG. 2 .

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Referring to FIG. 3 , FIG. 3 is a schematic structural diagram of a connection device for a transmission tower provided by an embodiment of the present invention. Referring to FIG. 2 again, FIG. 2 is a schematic diagram of the position of the connecting plate A in the transmission tower. As shown in the figure, the connection device for a power transmission tower includes: a tower body main material 1 , a transverse material 2 and a first connection plate 3 .

Wherein, the tower body main material 1 includes a first tower body main material section 11 and a second tower body main material section 12 arranged linearly. During specific implementation, both the first tower body main material section 11 and the second tower body main material section 12 can be angle steels, and the two angle steels are linearly arranged to form the tower body main material 1 .

The cross member 2 includes a linearly arranged main cross arm material 21 and a partition cross member 22. In practice, the cross arm main material 21 and the partition cross member 22 can also be angle steel.

Both the tower body main material 1 and the cross member 2 are connected to the first connecting plate 3 , and the tower body main material 1 and the cross member 2 are arranged at an angle.

Specifically, the first tower body main material section 11, the second tower body main material section 12, the cross arm main material 21 and the partition cross member 22 are all connected to the first connecting plate 3 by bolts, and the first tower body main material The tower body main material 1 composed of the material section 11 and the second tower body main material section 12 and the horizontal material 2 composed of the cross-arm main material 21 and the partition horizontal material 22 can be arranged at an angle, preferably vertically. The partition cross member 22 is located on the left side of the tower body main material 1 , and the cross arm main material 21 is located on the right side of the tower body main material 1 . There is a preset gap between the first tower body main material section 11 and the second tower body main material section 12, and one end (the right end shown in Fig. 3 ) of the partition cross member 22 extends into the first tower body main material section 11 In the preset gap between the main material section 12 and the second tower body. The preset gap may be determined according to actual conditions, which is not limited in this embodiment.

Referring to FIG. 7 , the first connecting plate 3 is a fire curved plate, and the second connecting plate 4 is connected to the fire curve of the first connecting plate 3 . Specifically, the fire curve angle of the first connecting plate 3 Among them, B1 is the inner width of the lower plane of the cross arm, B2 is the outer width of the lower plane of the cross arm, and L is the length of the cross arm. During specific implementation, there is a preset distance between the right edge of the tower body main material 1 and the fire curve of the first connecting plate 3, and the preset distance is preferably 9-11mm.

It should be noted that the left and right in this embodiment are relative to the structure shown in FIG. 3 .

In the prior art, the tower body main material 1 adopts Q420∠220×22, the cross arm main material 21 and the partition cross member 22 both adopt Q420∠250×30, and the gusset plate 4' has a thickness of 32mm. According to the structural form provided by the embodiment of the utility model, the specification of the main material section 11 of the first tower body is reduced to Q420∠200×20, and the specification of the main material 21 of the cross arm and the horizontal material 22 of the partition is reduced to Q420∠250× 26. The thickness of the first connecting plate 3 is reduced to 28mm, and the length is also reduced.

In the present embodiment, the tower body main material 1 is divided into a first tower body main material section 11 and a second tower body main material section 12, and one end (the right end shown in FIG. 3 ) of the partition cross member 22 extends into the first In the preset gap between the tower body main material section 11 and the second tower body main material section 12, the distance between the partition cross material 22 and the cross arm main material 21 becomes smaller, the tower head forms a whole, and the tower head The main body material has become a part of the tower head, and the force is directly transmitted downward, so that the force transmission effect is better, and the strength of the main material 21 of the cross arm and the horizontal material 22 of the partition are no longer reduced in design; the main material of the first tower body Section 11, the specifications of the main material 21 of the cross arm and the cross material 22 of the partition are all reduced, and the external short angle steel is canceled, which effectively reduces the weight of the tower; and because the lower plane of the cross arm is wide inside and narrow outside, the first connecting plate 3 It is convenient to connect the cross-arm main material 21 after bending at a certain angle.

Referring to FIG. 4 and FIG. 5 , the above embodiments may further include: a second connecting plate 4 . Wherein, the second connecting plate 4 is vertically connected to the first connecting plate 3, and the second connecting plate 4 is located between the tower body main material 1 and the cross arm main material 21. During specific implementation, the second connecting plate 4 can be connected with the first connecting plate 4. A solder connection is made between the connecting plates.

In this embodiment, the second connecting plate 4 is connected with the first connecting plate 3, compared with the way in the prior art that the second connecting plate 4 is connected with other oblique materials in the transmission tower, the second connecting plate 4 is added. The stability of the connecting plate 4.

In addition, in the above-mentioned embodiment, one limb of the first tower body main material section 11 and one limb of the second tower body main material 12 can also be connected to the first connecting plate 3, and the first tower body main material section 11 The other limb of the second tower body main material section 12 and the other limb of the second tower body main material section 12 are all connected with the second connecting plate 4, to increase the connection stability of the first tower body main material section 11 and the second tower body main material section 12 . During specific implementation, both the first tower body main material section 11 and the second tower body main material section 12 can be connected to the first connecting plate 3 and the second connecting plate 4 by bolts.

Referring to FIG. 6 , each of the above embodiments may further include: a third connecting plate 5 . Wherein, the third connecting plate 5 is vertically connected to the first connecting plate 3 and the second connecting plate 4 , and the third connecting plate 5 is located on the left side of the tower body main material 1 and placed below the partition cross member 22 . During specific implementation, the third connecting plate 5 can be welded with the first connecting plate 3 and the second connecting plate 4 .

In this embodiment, the third connection plate 5 is connected with the second connection plate 4 and the first connection plate 3, which is similar to the way in the prior art that the third connection plate 5 is connected with other inclined materials in the transmission tower. Ratio, the stability of the third connecting plate 5 is increased.

In addition, in the above-mentioned embodiment, one limb of the partition cross member 22 can also be connected with the first connecting plate 3, and the other limb of the partition cross member 22 can be connected with the third connecting plate 5, so as to increase the cross section of the partition. The connection stability of material 22. During specific implementation, the partition cross member 22 may be connected to the first connecting plate 3 and the third connecting plate 5 through bolts.

Continuing to refer to FIG. 6 , in each of the above embodiments, it may further include: a fourth connecting plate 6 . Wherein, the fourth connecting plate 6 is vertically connected to the first connecting plate 3 and the second connecting plate 4 , and the fourth connecting plate 6 is located on the right side of the tower body main material 1 and placed below the cross arm main material 21 . It can be seen that the third connecting plate 5 and the fourth connecting plate 6 are placed on both sides of the second connecting plate 4 respectively.

To sum up, in this embodiment, the main material of the tower body becomes a part of the tower head, and the force is transmitted directly downward, so that the effect of force transmission is better; The connection methods are all double-leg connection, there is no eccentricity, the force transmission is uniform, and there is no need to consider the strength reduction; the main material of the cross-arm is canceled to attach short angle steel, which reduces the specification of the main material of the cross-arm and avoids waste; the first The specifications of the main material section of the tower body, the main material of the cross arm and the cross material of the partition are all reduced, so that the weight of the tower is reduced.

Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalent technologies, the utility model is also intended to include these modifications and variations.

Claims (10)

1. A connecting device for a power transmission tower, characterized in that it comprises: a tower body main material (1), a cross member (2) and a first connecting plate (3); wherein, The main tower body material (1) includes a first tower body main material section (11) and a second tower body main material section (12) arranged linearly; The cross member (2) includes a linearly arranged cross arm main material (21) and a partition cross member (22); Both the tower body main material (1) and the cross member (2) are connected to the first connecting plate (3), and the tower body main material (1) and the cross member (2) form The included angle is set, and the partition cross member (22) is located on the left side of the tower body main material (1), and the cross arm main material (21) is located on the right side of the tower body main material (1) ; The first connecting plate (3) is a fire curved plate; there is a preset distance between the right edge of the tower body main material (1) and the fire curve of the first connecting plate (3); the second connecting plate ( 4) Connected to the fire curve of the first connecting plate (3). 2. The connecting device for transmission towers according to claim 1, characterized in that, The fire curve angle of the first connecting plate (3) Wherein, B1 is the inner width of the lower plane of the cross arm, B2 is the outer width of the lower plane of the cross arm, and L is the length of the cross arm. 3. The connection device for transmission towers according to claim 1, characterized in that the preset distance is 9-11 mm. 4. The connecting device for transmission towers according to claim 1, characterized in that, The main tower body material (1) is vertically arranged with the cross member (2); and, There is a preset gap between the first tower body main material section (11) and the second tower body main material section (12) of the tower body main material (1), and one end of the partition cross member (22) extending into the preset gap between the first tower body main material section (11) and the second tower body main material section (12). 5. The connecting device for transmission tower according to any one of claims 1 to 4, characterized in that, it also comprises: a second connecting plate (4); wherein, the second connecting plate (4) is vertical It is connected to the first connecting plate (3), and the second connecting plate (4) is located between the tower body main material (1) and the cross arm main material (21). 6. Connection device for transmission towers according to claim 5, characterized in that, Both the main material section (11) of the first tower body and the main material section (12) of the second tower body are angle steel; One limb of the first tower body main material section (11) and one limb of the second tower body main material section (12) are connected with the first connecting plate (3), and the other limbs are connected with the first connecting plate (3). The second connection plates (4) are connected. 7. The connecting device for transmission tower according to claim 5, characterized in that, it also comprises: a third connecting plate (5); wherein, the third connecting plate (5) is vertically connected to the first The connecting plate (3) and the second connecting plate (4), and the third connecting plate (5) is located on the left side of the tower body main material (1) and placed on the partition cross member ( 22) below. 8. The connection device for transmission towers according to claim 7, characterized in that: The partition cross member (22) is an angle steel; One leg of the partition cross member (22) is connected to the first connecting plate (3), and the other leg is connected to the third connecting plate (5). 9. The connecting device for transmission tower according to claim 5, characterized in that, it also comprises: a fourth connecting plate (6); wherein, the fourth connecting plate (6) is vertically connected to the first The connecting plate (3) and the second connecting plate (4), and the fourth connecting plate (6) is located on the right side of the tower body main material (1) and placed on the cross arm main material ( 21) below. 10. Connection device for transmission towers according to claim 9, characterized in that, The main material (21) of the cross arm is an angle steel; One limb of the cross-arm main material (21) is connected to the first connecting plate (3), and the other limb is connected to the fourth connecting plate (6).