Unlock instant, AI-driven research and patent intelligence for your innovation.

Armor clamp, insulator, composite cross arm with insulator and power transmission tower

A technology of insulators and metal fittings, applied in the field of fittings, insulators, their composite cross arms and transmission towers, can solve the problems of distorting the electric field distribution of the high-voltage terminal, restricting the combined connection, and easy plastic indentation at the connection of the fittings, so as to reduce the fatigue of the fittings. and stress damage, avoid stress concentration and prolong service life

Active Publication Date: 2016-06-08
JIANGSU SHENMA ELECTRIC CO LTD
View PDF10 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual operation, due to the directionality of the fittings at the end of the insulator, the combined connection with the transition fittings is greatly limited, and a series of installation problems often occur due to the incoordination with the size and angle of the transition fittings, resulting in cable-stayed The insulator cannot form a matching pre-tightened connection with the tower body, and plastic indentations are prone to appear at the joints of some fittings, and the metal shape will distort the electric field distribution at the high-voltage end

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Armor clamp, insulator, composite cross arm with insulator and power transmission tower
  • Armor clamp, insulator, composite cross arm with insulator and power transmission tower
  • Armor clamp, insulator, composite cross arm with insulator and power transmission tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 and figure 2 As shown, the transmission tower 150 of the first embodiment of the present invention includes a tower body 151 and a composite cross-arm 140 ( figure 1 Only the part where the cable-stayed insulator 102 on the composite cross-arm 140 is connected to the tower body 151 is shown). The composite cross arm 140 includes a cable-stayed insulator 102 and a post insulator 141 , and one end of the cable-stayed insulator 102 is fixedly connected to the end of the post insulator 141 through a fastener 142 .

[0049] see image 3 and Figure 4 , the insulator 102 in this embodiment includes an insulator 103 and a metal fitting 101 connected to the end of the insulator 103 . Specifically, the insulator 103 includes a mandrel 104 and a shed 105 covering the outer side of the mandrel 104 . The mandrel 104 is made of pultruded glass fiber impregnated with epoxy resin, and its cross section is circular. The umbrella skirt 105 is coated on the outsid...

Embodiment 2

[0063] see Figure 8 , in the transmission tower 250 of the second embodiment of the present invention, the cable-stayed insulator 202 on the composite cross arm is connected to the tower body 251, and its specific connection structure is basically the same as that of the first embodiment, and will not be repeated here.

[0064] see Figure 9-Figure 13 , different from the first embodiment, in this embodiment, the rotating part 230 in the fitting 201 on the insulator 202 includes two half hoops 231 that cooperate with each other, and a groove 232 is set on the inner wall of the half hoop 231, and the two half hoops The grooves 232 on the hoop 231 cooperate with each other to form a rotating cavity.

[0065] Specifically, see Figure 10 and Figure 13 , in this embodiment, the head 210 further includes a swivel neck 215, and the two connecting lugs 211 are fixed on the seat plate portion 214 through the swivel neck 215, and the diameter of the seat plate portion 214 is consi...

Embodiment 3

[0069] see Figure 15 and Figure 16 , in the transmission tower 350 of the third embodiment of the present invention, the cable-stayed insulator 302 on the composite cross arm 340 is connected to the tower body 351, and its specific connection structure is basically the same as that in the second embodiment, and will not be repeated here.

[0070] see Figure 17 to Figure 20 Different from the second embodiment, in the fitting 301 of the third embodiment, the connection part 322 is a ball head, and the rotating part 330 includes two hemispherical sockets 331 that cooperate with each other. A hemispherical recess 332 and a groove 333 are provided on the inner wall of the hemispherical socket 331 , the groove 333 communicates the recess 332 with the outside and forms an opening on the side of the hemispherical socket 331 close to the insulator 303 . The diameter of the depression 332 is consistent with the diameter of the connection part 322. After the two hemispherical socke...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an armor clamp. The armor clamp connected to the end of an insulator comprises a head, a fixed part and a rotary part, wherein the fixed part is fixedly connected with the end of the insulator, the head is used for being connected with external equipment, the head is rotatably connected with the fixed part through the rotary part, and the head can rotate 360 degrees around the axis of the insulator. The armor clamp has the advantages that the armor clamp has no direction limitation, the head of the armor clamp can rotate optionally according to the angle requirements of the connecting part of the external equipment during the mounting process of the insulator, follow-up coordination during connection can be achieved, smooth mounting is guaranteed, stress concentration of the armor clamp can be avoided effectively, armor clamp fatigue and stress damage degree can be lowered, and the service life of the armor clamp is prolonged. The invention further discloses an insulator, a composite cross arm with the insulator, and a power transmission tower.

Description

technical field [0001] The invention relates to a power transmission insulation device, in particular to a metal fitting, an insulator, a composite cross arm and a power transmission tower. Background technique [0002] The transmission tower is an important supporting structure in the transmission line, and its structural design and materials directly affect the construction speed, economy, reliability, installation, maintenance, and repair of the transmission line. Composite cross-arm is used as a structure to support the operation of transmission lines. Due to its own insulation performance, compared with traditional iron towers, the suspension insulator string is cancelled, the tower is less affected by the wind load, the height is significantly reduced, the width of the corridor is reduced, and the weight of the whole tower is reduced. Reduced, the basic force is also reduced accordingly, which improves the safety performance, and has the advantages of corrosion resista...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02G7/00
CPCH02G7/00
Inventor 马斌王青占郁杰邱勇李德权
Owner JIANGSU SHENMA ELECTRIC CO LTD