CN118117517A - Tubular busbar suspension fitting - Google Patents

Abstract

The invention relates to the field of ultrahigh voltage valve hall hardware fittings of electric power systems, in particular to a tubular busbar suspension hardware fitting. The tubular busbar suspension fitting comprises a connecting frame and a tubular busbar clamp, a first guide supporting rod and a first guide groove which are matched with each other in a guiding manner along the axis direction of the tubular busbar clamp are arranged between the connecting frame and the tubular busbar clamp, the tubular busbar is suspended under an insulator string through the tubular busbar suspension fitting, when the length of the tubular busbar is changed due to expansion and contraction, the tubular busbar drives the tubular busbar clamp to axially move on the connecting frame along the tubular busbar clamp through the first guide supporting rod and the first guide groove, and therefore potential safety hazards that the tubular busbar is broken due to the tensile force generated by the tubular busbar and the adjustable connecting frame due to expansion and contraction are eliminated. Meanwhile, as the tubular bus is horizontally suspended below the tubular bus suspension fitting, when the position of the tubular bus clamp relative to the connecting frame is changed, the gravity center of the tubular bus suspension fitting is not changed, and the potential safety hazard caused by gravity center change is avoided.

Description

Tubular busbar suspension fitting

Technical Field

The invention relates to the field of ultrahigh voltage valve hall hardware fittings of electric power systems, in particular to a tubular busbar suspension hardware fitting.

Background

The valve hall of the converter station of the extra-high voltage direct current transmission system is a closed space, and equipment such as a converter valve, a transformer bushing, a wall bushing and the like are arranged in the valve hall, and different equipment are connected by a tubular bus to form a transmission loop so as to realize conversion between alternating current and direct current.

The invention patent with the application publication number of CN103296623A and the application publication date of 2013, 09 and 11 discloses a tubular busbar suspension fitting for a valve hall of a converter station, which comprises an anti-corona ball, a suspender fixedly arranged on the inner spherical surface of the anti-corona ball and used for connecting an insulator string, an adjustable connecting frame hinged with the suspender and adjustable in length in the vertical direction, and a tubular busbar clamp hinged with the adjustable connecting frame. The tubular busbar suspension fitting in this patent can realize the three-dimensional rotation of tubular busbar through the cooperation of jib, adjustable link and tubular busbar clamp, has simple to operate, swift advantage, but behind tubular busbar and the tubular busbar clamp fixed assembly in this patent, only can carry out the rotation of less scope in articulated axial through the articulated shaft of fitting. When the length of the tubular bus is changed due to expansion and contraction, the tubular bus cannot move in a large range relative to the hardware fitting, so that the tubular bus has the potential safety hazard of being broken.

The patent of the utility model with the application publication number of CN204947515U and the grant bulletin date of 2016 year 01 month 06 discloses a tubular busbar support hardware device, which comprises a base, a tubular busbar fixing seat and a tubular busbar fixing seat support piece, wherein an elongated slot extending along the front-back direction is arranged at the corresponding position of the base and the tubular busbar fixing seat. In the patent, through the long groove extending in the front-back direction, the bus fixing seat can swing up and down and left and right relative to the base and move forwards and backwards along the central axis of the tubular bus fixing seat, so that the installation is not limited by field errors, the installation efficiency is high, and the risk that the tubular bus is broken due to expansion caused by heat and contraction caused by cold after the installation is finished is reduced. When the structure is applied to the tubular busbar suspension fitting, namely, the long groove is arranged on the adjustable connecting frame of the tubular busbar suspension fitting, the corresponding pin shaft is arranged on the tubular busbar clamp, and when the tubular busbar drives the tubular busbar clamp to move, the change of the position of the tubular busbar clamp relative to the movable adjusting frame inevitably leads to the change of the gravity center of the tubular busbar suspension fitting device. Resulting in a certain safety hazard.

Disclosure of Invention

The invention aims to provide a tubular busbar suspension fitting, which solves a series of potential safety hazards such as stretch-broken, unstable gravity center and the like caused by length change due to thermal expansion and cold contraction after an existing tubular busbar is mounted on the tubular busbar suspension fitting.

In order to solve the problems, the tubular busbar suspension fitting adopts the following technical scheme: the tubular busbar suspension fitting comprises a connecting frame and a tubular busbar clamp, wherein an upper supporting connecting piece is fixedly arranged on the upper portion of the tubular busbar clamp, a first guide groove extending along the axis direction of the tubular busbar clamp is formed in the upper supporting connecting piece, and a first guide supporting rod in guide sliding fit with the first guide groove is correspondingly arranged on the connecting frame.

The beneficial effects are that: through setting up the support connecting piece on the bus bar clamp, go up the first guide way that sets up on the support connecting piece and extend along bus bar clamp axis direction, correspond on the link and set up in first guide way direction sliding fit's first guide support pole, not only have bigger movable range when the installation, be convenient for install the bus bar on the bus bar suspension fitting, after the installation, when the bus bar leads to length variation because expend with heat and contract with cold, thereby when driving the motion of bus bar clamp, the bus bar clamp passes through first guide way direction removal on the support frame, avoid bus bar and bus bar suspension fitting to produce great pulling force, the potential safety hazard that the bus bar probably was broken has been eliminated. Meanwhile, as the tubular bus is horizontally suspended below the tubular bus suspension fitting, the guide groove is formed in the tubular bus clamp instead of the connecting frame, when the position of the tubular bus clamp relative to the connecting frame is changed, the integral gravity center is not changed, and the potential safety hazard caused by gravity center change is eliminated.

Further, the first guide supporting rod is a first pin shaft hinged with the lower part of the connecting frame, and the first pin shaft penetrates through the first guide groove.

The beneficial effects are that: the first pin shaft is hinged to the lower portion of the connecting frame, and penetrates through the first guide groove on the pipe bus-bar clamp, so that the pipe bus-bar clamp can move along the axial direction, and the pipe bus-bar clamp is simple in structure and low in cost.

Further, a supporting device for supporting the bus-bar clamp is arranged below the bus-bar clamp.

The beneficial effects are that: and a supporting device is arranged below the pipe bus clamp, so that the pipe bus is fixed more firmly.

Still further, strutting arrangement is including setting up lower support connecting piece and the base support piece of pipe bus-bar clamp lower part, set up the second guide way that extends along pipe bus-bar clamp axis direction on one of them down support connecting piece and the base support piece, be equipped with rather than articulated second guide bracing piece on the other, second guide bracing piece and second guide way direction sliding fit.

The beneficial effects are that: the lower support connecting piece and the base support piece are arranged below the supporting device, the lower support connecting piece and the base support piece are respectively provided with a second guide groove extending along the axis direction of the pipe bus-bar clamp and a second guide support rod hinged with the second guide groove, and the pipe bus-bar clamp is enabled to move more stably along the axis direction by being matched with the first guide groove and the first guide support rod between the pipe bus-bar clamp and the connecting frame.

Further: the second guide supporting rod is a second pin shaft hinged with the lower supporting connecting piece or the base supporting piece, and the second pin shaft penetrates through the second guide groove.

The beneficial effects are that: the lower support connecting piece or the base supporting piece is hinged with a second pin shaft, the second pin shaft penetrates through the guide groove on the base supporting piece or the lower support connecting piece, so that the axial movement of the pipe bus clamp is realized, and meanwhile, the pin shaft is used for connecting the structure is simple, and the cost is low.

Further, the first pin shaft and the second pin shaft are located on the same vertical plane.

The beneficial effects are that: the first pin shaft and the second pin shaft are arranged on the same vertical surface, so that the gravity centers of the supporting device, the tubular bus clamp and the connecting frame are positioned on the same vertical line, and the whole body is more stable.

Still further, the link includes a boom and an adjustable connector.

The beneficial effects are that: the height of the pipe bus clamp can be adjusted through the adjustable connecting piece, so that the installation of the pipe bus and the pipe bus clamp is more convenient.

Still further, the adjustable connector comprises an adjusting bolt and an adjusting nut, and the height of the adjustable connector is adjusted through the adjusting nut above the adjusting bolt.

The beneficial effects are that: the height of the adjustable connecting frame is adjusted by adjusting the adjusting nut on the adjusting bolt, so that the structure is simple, and the adjustment is convenient.

Further, the connecting frame comprises a U-shaped fast=block connected to the lower part of the adjustable connecting piece, and the first guide supporting rod is hinged to the U-shaped piece.

The beneficial effects are that: the lower part of the adjustable connecting piece is hinged with the U-shaped piece, and the first pin shaft is arranged on the U-shaped block, so that the pipe bus clamp has a larger moving range, and the installation of the pipe bus clamp and the pipe bus is facilitated.

Still further, the base support piece includes connecting block and support column, and the connecting block is articulated to be connected with supporting seat upper portion, the second guide slot is offered on the articulated second direction bracing piece of connecting block or the connecting block.

The beneficial effects are that: the connecting block is hinged to the upper portion of the supporting column and is matched with the lower supporting connecting piece in a guiding mode, so that the pipe bus clamp has a larger moving range, and the pipe bus clamp and a pipe bus are more convenient to install.

Drawings

FIG. 1 is a schematic diagram of the structure of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a left side view of one embodiment of FIG. 1;

FIG. 3 is a schematic view of a portion of the structure of FIG. 1 with the anti-blooming ball and boom removed;

FIG. 4 is a schematic view of the structure of the left view in FIG. 3;

FIG. 5 is a schematic view of the structure of the U-shaped block of FIG. 4;

FIG. 6 is a schematic view of the structure of the connection block of FIG. 4;

in the figure: 1. anti-corona ball; 2. a boom; 3. an adjustable connector; 31. an adjusting nut; 32. an adjusting bolt; 33. a U-shaped block; 3301. an adjustment hole; 3302. a first pin hole; 34. a first pin; 4. a pipe bus clip; 41. an upper support link; 411. a first guide groove; 42. a lower support link; 421. a second guide groove; 5. a base support; 51 connecting blocks; 5101. a second pin hole; 5102. a connection hole; 52. a support column; 53. a second pin; 6. a wire; 7. an insulator string; 8. a support rod; 9. a horizontal wire outlet clip; 10. and a tubular busbar.

Detailed Description

The features and capabilities of the present invention are described in further detail below in connection with the examples.

First, the technical scheme of the present invention is generally described:

The lower end of the hanging rod is hinged with an adjustable connecting piece with the length capable of being adjusted along the vertical direction, the adjustable connecting piece is fixedly connected with an anti-corona ball through a supporting rod, the bottom of the adjustable connecting piece is hinged with a pipe bus clamp which is matched with the pipe bus clamp in a hooping mode, the pipe bus clamp can be rotated in the front-back direction, the left-right direction and the movement in the up-down direction through the vertical direction adjustment of the adjustable connecting piece and the hinge shaft matching of the hanging rod and the adjustable connecting piece and the pipe bus clamp, accordingly, when the pipe bus and the pipe bus clamp are matched and installed, a large adjusting range is achieved, the pipe bus is convenient to install on the pipe bus hanging fitting, meanwhile, the pipe bus clamp can rotate along the vertical axis of the adjustable connecting frame, the adjusting range of the pipe bus clamp is further improved, and the installation efficiency of the pipe bus clamp during installation is improved.

However, after the installation of the tubular bus is completed, the length change of the tubular bus drives the tubular bus clamp to move relative to the hinged shaft of the tubular bus clamp due to heat expansion and cold contraction, and because the moving range along the hinged shaft is smaller, tension is generated between the tubular bus and the tubular bus suspension fitting, so that the tubular bus has the risk of being broken. Meanwhile, as the tubular bus is horizontally suspended below the tubular bus suspension fitting, the guide groove is formed in the tubular bus clamp instead of the connecting frame, when the position of the tubular bus clamp relative to the connecting frame is changed, the integral gravity center of the tubular bus suspension device is not changed, and a series of potential safety hazards caused by gravity center change are avoided.

Embodiment 1 of a tubular busbar suspension fitting of the present invention:

As shown in fig. 1-3, the connecting frame comprises a hanging rod 2 hinged with an insulator string 7, an adjustable connecting piece 3 is hinged below the hanging rod 2, the adjustable connecting piece 3 is fixedly connected with an anti-corona ball 1 through a supporting rod 8, the adjustable connecting piece 3 realizes the length adjustment in the vertical direction through an adjusting nut 31 and an adjusting bolt 32, and specifically, the embodiment adjusts the vertical direction of the adjustable connecting piece 3 through two adjusting nuts 31, and the adjustable bus suspension hardware is simple in structure and convenient to adjust. The pipe bus clamp 4 is provided with an upper support connecting piece 41, the upper support connecting piece 41 is provided with a first guide slot 411 extending along the axis direction of the pipe bus clamp 4, and the connecting frame is correspondingly provided with a first guide support rod in guide sliding fit with the first guide slot 411.

In this embodiment, the first guide support bar is a first pin 34 hinged to the lower portion of the connection frame, and the first pin 34 passes through the first guide slot 411. Specifically, as shown in fig. 1,2 and 5, the connecting frame further includes a U-shaped block 33, the U-shaped block 33 is provided with an adjusting hole 3301 matched with the adjusting bolt 32 and a first pin hole 3302 for passing through the first pin 34, and the first pin 34 is hinged with the U-shaped block 33 through the first pin hole 3302 and passes through the first guide slot 411 on the upper support connecting member 41. In other embodiments, the pin 34 may be a bolt or other similar structure, so long as the pin passes through the through hole of the adjustable connector 3 and the first guiding slot 411 on the bus bar clamp 4, so that the adjustable connector 3 can move along the first guiding slot 411 on the upper support connector 41. In other embodiments, only one upper support link 41 may be provided, and only the first guide slot 411 is provided on the upper support link 41 to be in guide connection with the adjustable link 3.

As shown in fig. 1 and 4, a lower support connecting piece 42 is arranged below the pipe bus-bar clamp 4, a support device is further arranged below the pipe bus-bar clamp 4, the support device comprises the lower support connecting piece 42 and a base support 5, the base support 5 comprises a connecting block 51 and a supporting column 52, the connecting block 51 is hinged with the upper portion of the supporting column 52, the supporting column 52 of the base support 5 is fixedly connected with the anti-corona ball 1, and the supporting column 52 of the base support 5 is further provided with a wire 6 electrically connected with the lower support connecting piece 42 of the pipe bus-bar clamp 4. By providing the base support 5 below the busbar clamp 4, the overall is more stable when the busbar 10 is mounted to the busbar clamp 4.

The lower support connecting piece 41 and the base support piece 5 are provided with a second guide groove 421 extending along the axis direction of the pipe bus bar clamp 4, the other one is provided with a second guide supporting rod hinged with the second guide supporting rod, the second guide supporting rod is in guide sliding fit with the second guide groove 421, and the second guide supporting rod can be specifically arranged on the lower support connecting piece 41 and the second guide supporting rod which is arranged on the base support piece 5 and is hinged with the base support piece, or the second guide supporting rod which is arranged on the lower support connecting piece 41 and is hinged with the lower support connecting piece and the second guide groove 421 which is arranged on the base support piece 5, and the second guide supporting rod is in guide sliding fit with the second guide groove 421.

The second guide supporting bar is specifically a second pin 53 hinged to the lower support link 41 or the base support 5, and the second pin 53 passes through the second guide groove 421. The second pin 53 is provided on the lower support link 41 or the base support 5 to fulfill the function of axially guiding the movement of the bus bar clamp 4.

Specifically, as shown in fig. 3, 4 and 6, in this embodiment, the second pin 53 is disposed on the connection block 51, and the second guide groove 421 is disposed on the lower support connection frame 42. The connection block 51 includes a second pin hole 5101 for connecting the lower support connection member 42 and a connection hole 5102 for connecting the support column 52, the lower support connection member 42 is provided with a second guide groove 421 extending along the axial direction of the pipe bus 4 clamp, and the second pin 53 passes through the second guide groove 421 of the lower support connection member 42 and the second pin hole 5101 of the connection block 51 to realize axial movement of the pipe bus 4 clamp on the base support member 5 along the pipe bus 4 clamp. In other embodiments, the lower support connector 42 may be provided with a second pin hole 5101, and the connecting block 51 may be provided with a second guide groove 421 to enable the lower support connector 42 to move on the base support 5 along the axial direction of the pipe bus bar clamp 4. Or guide grooves are provided on both the lower support link 42 and the connection block 51, so that the pipe bus bar clamp 4 has a larger range of movement in the axial direction. In other embodiments, the lower support link 42 may be provided in only one piece or in two pieces. In other embodiments, the second pin 53 may be replaced with a bolt and nut or other structure. In this embodiment, the connection hole 5102 in the connection block 51 is a bolt hole, and in other embodiments, the connection hole 5102 may be a light hole.

In this embodiment, the first pin 34 and the second pin 53 are located on the same vertical plane, and the two pins are located on the same vertical plane, so that the center of gravity of the base support 5, the tubular busbar 10, the tubular busbar clamp 4 and the adjustable connector 3 are located on the same vertical plane, and the whole is more stable.

The tubular busbar suspension device is also provided with a horizontal wire outlet wire clamp 9, and the horizontal wire outlet wire clamp 9 is fixed on the tubular busbar 10 for outlet wire through-flow.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a tubular busbar suspension fitting, includes link and tubular busbar clamp, its characterized in that, the fixed support connecting piece that is equipped with in tubular busbar clamp upper portion is equipped with on this support connecting piece along the first guide way that tubular busbar clamp axis direction extends, correspond on the link be equipped with first guide groove direction sliding fit's first guide bracing piece.

2. The tubular busbar suspension fitting according to claim 1, wherein the first guide support bar is a first pin hinged to the lower portion of the connection frame, the first pin passing through the first guide groove.

3. The tubular busbar suspension fitting of claim 2, wherein a support device supporting the tubular busbar clamp is provided below the tubular busbar clamp.

4. The tubular busbar suspension fitting according to claim 3, wherein the supporting device comprises a lower supporting connecting piece and a base supporting piece which are arranged at the lower part of the tubular busbar clamp, one of the lower supporting connecting piece and the base supporting piece is provided with a second guide groove extending along the axis direction of the tubular busbar clamp, the other one of the lower supporting connecting piece and the base supporting piece is provided with a second guide supporting rod hinged with the lower supporting connecting piece and the base supporting piece, and the second guide supporting rod is in guide sliding fit with the second guide groove.

5. The tubular busbar suspension fitting of claim 4, wherein the second guide support bar is a second pin hinged to the lower support link or the base support, the second pin passing through the second guide slot.

6. The tubular busbar suspension fitting of claim 5, wherein the first pin and the second pin are located on the same vertical plane.

7. The tubular busbar suspension fitting of claim 1, wherein the connection frame comprises a boom and an adjustable connection.

8. The tubular busbar suspension fitting of claim 7, wherein: the adjustable connecting piece comprises an adjusting bolt and an adjusting nut, and the height of the adjustable connecting piece is adjusted through the adjusting nut above the adjusting bolt.

9. The tubular busbar suspension fitting of claim 7, wherein: the connecting frame comprises a U-shaped block connected to the lower portion of the adjustable connecting piece, and the first guide supporting rod is hinged to the U-shaped block.

10. The tubular busbar suspension fitting of claim 4, wherein: the base support piece comprises a connecting block and a supporting column, the connecting block is hinged with the upper portion of the supporting column, and a second guide groove is formed in the connecting block in a hinged mode or the connecting block is hinged with a second guide supporting rod.